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Are you looking for a trusted online store to buy industrial automation power supplies? DMS Tech Mart offers 100% original and top quality products to ensure a hassle free shopping. Get power supplies from all popular brands such as Siemens, Finder, ABB, Cabur, and more in one place. A professional technical support team will be at your side 24/7. Explore our vast range of reliable power supplies and get free shipping across Europe.
  • 6EP13361LB00 | Siemens sitop PSU100L 24V/20A

    SIEMENS 6EP13361LB00 | Siemens sitop PSU100L 24V/20A

    8 EU Warehouse Available

    Siemens sitop PSU100L 24 V/20 A 6EP13361LB00  Stabilized power supply input: AC 100 ... 240 V output: DC 24 V/20 A. Technical data Type of supply voltage: AC / DC Output voltage 1: 24...24 V Max. output current 1: 20 A Adjustable output voltage: yes Output voltage rating 1: 24 V Output current rating 1: 20 A Short-circuit proof: yes Nominal AC supply voltage 50 Hz: 240...240 V Nominal AC supply voltage 60 Hz: 100...100 V Rated DC supply voltage: 100...240 V Stabilized output voltage: yes Output power: 480 W Stabilised: yes Type of electrical connection: Screw connection Possibility of rail mounting: yes Wall mountable: no Suitable for modular mounting: yes Recess width: 110 mm Recess height: 225 mm Direct mounting possible: no Width: 110 mm Height: 125 mm Depth: 125 mm Protection degree (IP): IP20

    €170,00

  • 6EP71336AE000BN0 | Siemens simatic ET 200SP PS 24V/10A

    SIEMENS 6EP71336AE000BN0 | Siemens simatic ET 200SP PS 24V/10A

    1 EU Warehouse Available

    Siemens simatic ET 200SP PS 24V/10A 6EP71336AE000BN0  Stabilized power supply input: AC 120/230 V output: DC 24 V/10 A. Technical data Type of supply voltage: AC Output voltage 1: 24...24 V Max. output current 1: 12 A Adjustable output voltage: yes Output voltage rating 1: 24 V Output current rating 1: 10 A Short-circuit proof: yes Nominal AC supply voltage 50 Hz: 230...230 V Nominal AC supply voltage 60 Hz: 120...120 V Stabilized output voltage: yes Output power: 240 W Stabilised: yes Type of electrical connection: Spring terminal connection Possibility of rail mounting: yes Wall mountable: no Suitable for modular mounting: yes Recess width:160 mm Recess height: 174 mm Direct mounting possible: no Width: 160 mm Height: 117 mm Depth: 74 mm Protection degree (IP): IP20

    €143,41

  • 6EP13362BA10 | Siemens sitop PSU100S 20 A

    SIEMENS 6EP13362BA10 | Siemens sitop PSU100S 20 A

    2 EU Warehouse Available

      Siemens sitop PSU100S 20 A 6EP13362BA10  Astabilized power supply input: AC 120/230 V output: DC 24 V/20 A. Technical data Type of supply voltage: AC Output voltage 1: 24...24 V Max. output current 1: 20 A Adjustable output voltage: yes Output voltage rating 1: 24 V Output current rating 1: 20 A Short-circuit proof: yes Nominal AC supply voltage 50 Hz: 230...230 V Nominal AC supply voltage 60 Hz: 120...120 V Stabilized output voltage: yes Power absorbed: 53 VA Output power: 480 W Stabilized: yes Type of electrical connection: Screw connection Possibility of rail mounting: yes Wall mountable: no Suitable for modular mounting: yes Recess width: 120 mm Recess height: 245 mm Direct mounting possible: no Width: 115 mm Height: 145 mm Depth:150 mm Protection degree (IP): IP20  

    €197,69

  • 6EP13331LB00 | Siemens sitop PSU100L 24V/5A

    SIEMENS 6EP13331LB00 | Siemens sitop PSU100L 24V/5A

    11 EU Warehouse Available

    Siemens sitop PSU100L 24 V/5 A 6EP13331LB00  Stabilized power supply input: AC 120/230 V output: DC 24 V/5 A. Technical data Type of supply voltage: ACOutput voltage 1: 24...24 VMax. output current 1: 5 AAdjustable output voltage: yes Output voltage rating 1: 24 VOutput current rating 1: 5 A Short-circuit proof: yes Rated AC 50 Hz supply voltage: 230...230 VRated AC 60 Hz supply voltage: 120...120 VStabilized output voltage: yes Power consumption: 17 VAOutput power: 120 W Stabilized: yes Type of electrical connection: Screw connectionPossibility of rail mounting: yesWall mountable: no Suitable for modular mounting: yes Embedding width: 50 mmEmbedding height: 225 mmDirect mounting possible: no Width: 50 mmHeight: 125 mmDepth: 120 mm Protection degree (IP): IP20

    €69,54

  • 6EP33336SB000AY0 | Siemens logo!Power 24 V / 4 A

    SIEMENS 6EP33336SB000AY0 | Siemens logo!Power 24 V / 4 A

    Siemens logo!Power 24 V / 4 A 6EP33336SB000AY0  Stabilized power supply input: AC 100 ... 240 V output: DC 24 V / 4 A. Technical data Inputform of the electrical network: Single-phase AC or DCsupply voltage with AC rated value min./max.: 100 ... 240 V supply voltage with AC start/end value: 85 ... 264 Vinput voltage with DC: 110 ... 300 Vwide-range input: Yesoverloadability due to overvoltage: AC 300 V for 1 sbuffering time with nominal value of the output current in case of lack of mains voltage min.: 40 msoperating condition of buffering due to lack of mains voltage:With Ue = 187 Vmains frequency: 50/60 Hzmains frequency start/end value: 47 ... 63 Hzinput current● at rated input voltage 120 V: 1.95 A● at nominal value of the 230 V input voltage: 0.97 Acurrent limitation of the inrush current at 25 °C max.: 31 AI2t value max.: 2 .5 A²·s Outputshape of the voltage curve at the output: potential-free regulated DC voltageoutput voltage with DC rated value: 24 Voutput voltage ● at output 1 with DC rated value: 24 Vsettable output voltage: Yes; Via potentiometersettable output voltage initial value: 22.2 Vsettable output voltage final value: 26.4 Vrelative overall voltage tolerance: 3 %relative voltage regulation accuracy output voltage● with slow fluctuation of the input voltage: 0.1 %● with slow fluctuation of the ohmic load: 0.1 %residual ripple● max.: 200 mV ● typ.: 30 mV

    €104,10

  • 6EP13341LB00 | Siemens sitop PSU100L 24V/10A

    SIEMENS 6EP13341LB00 | Siemens sitop PSU100L 24V/10A

    6 EU Warehouse Available

    Siemens sitop PSU100L 24 V/10 A 6EP13341LB00  Stabilized power supply input: AC 120/230 V output: DC 24 V/10 A. Technical data Inputform of the electrical network Single-phase ACsupply voltage with AC Setting via switch on the devicesupply voltage 120 V/230 V input voltage 1 at 93 ... 132 V ACinput voltage 2 at 187 ... 264 V ACwide-range input Nooverloadability due to overvoltage 2.3 x Ue nom, 1, 3 msbuffering time with nominal value of theoutput current in case of lack of mains voltage min.20 msbackup operating condition for lack ofmains voltage With Ue = 93/187 Vmains frequency 50/60 Hzmains frequency initial valuemains frequency final value47 ... 63 Hzmains current input● at rated input voltage 120 V 4.1 A● at rated input voltage 230 V 2 Acurrent limitation of the inrush current to 25 °C max. 65 Aduration of inrush current limitation at 25 °C● typ. 3 msI2t value max. 3.3 A²·simplementation of protection T 6.3 A/250 V (not accessible)implementation of mains cable protection Recommended circuit breaker: apart. from 10 A characteristic COutputshape of the voltage curve at the output regulated potential-free DC voltageoutput voltage with DC nominal value 24 Voutput voltage ● at output 1 with nominal value DC 24 Voutput voltage adjustable Yes; Via potentiometersettable output voltage initial value 22.8 Vsettable output voltage final value 26.4 Vrelative overall voltage tolerance 3 %relative regulation accuracy of the output voltage● with slow fluctuation of the input voltage 0.1 %● with slow fluctuation of the ohmic load 0.5 %residual ripple● max. 150 mV● typ. 50 mV

    €105,91

  • 6EP33316SB000AY0 | <tc>Siemens</tc> logo!power 24 V / 1.3 A

    SIEMENS 6EP33316SB000AY0 | Siemens logo!power 24 V / 1.3 A

    1 EU Warehouse Available

    Siemens logo!power 24 V / 1.3 A 6EP33316SB000AY0  Stabilized power supply input: AC 100 ... 240 V output: DC 24 V / 1.3 A. Technical data Inputform of the electrical network: Single-phase AC or DCsupply voltage with AC nominal value min./max.: 100 ... 240 V supply voltage with AC start/stop value: 85 ... 264 Vinput voltage with DC: 110 ... 300 Vwide-range input: Yesoverloadability due to overvoltage: AC 300 V for 1 sbuffering time with nominal value of the output current in case of mains voltage failure min.: 40 msbuffering operating condition for mains voltage failure: With Ue = 187 Vmains frequency: 50/60 Hzmains frequency start/end value: 47 ... 63 Hzinput current● at rated input voltage 120 V: 0.7 A● at nominal value of the input voltage 230 V:  0.35 Acurrent limitation of the inrush current at 25 °C max.: 25 AI2t value max.: 0 .8 A²·s Outputshape of the voltage curve at the output: potential-free regulated DC voltageoutput voltage with DC nominal value: 24 Voutput voltage ● at output 1 with DC rated value: 24 Vsettable output voltage: Yes; Via potentiometersettable output voltage initial value: 22.2 Vsettable output voltage final value: 26.4 Vrelative overall voltage tolerance: 3 %relative voltage regulation accuracy output voltage● with slow fluctuation of the input voltage: 0.1 %● with slow fluctuation of the ohmic load: 0.1 %

    €39,46

  • ABL8RPS24050 | Schneider-Electric universal power supply

    SCHNEIDER ELECTRIC ABL8RPS24050 | Schneider-Electric universal power supply

    Schneider-Electric universal power supply ABL8RPS24050 The Schneider Electric ABL8 regulated switching mode power supply provides direct current voltage, has a rated input of 100 to 500 Vac, a rated output current of 5 A at 24 Vdc and a rated power of 120 watts. PresentationProduct rangeModicon Power SupplyProduct typePower supplypower supply type Switching modeNominal input voltage100...120 V AC single phase, terminals: N-L1200...500 V AC phase to phase, terminals: L1-L2rated power in W 120 Woutput voltage 24 V DCoutput power supply current 5 Aadmissible temporary current amplification 1.5 x In (for 4 s)anti-harmonic filterLow frequency harmonic currentsTechnical characteristicsinput voltage limits85...132 V AC170...550 V ACinput current inrush 30 A18 mm modules0.51 at 240 V AC0.59 at 120 V ACefficiency 87 %Output voltage adjustment24...28, 8 V adjustablepower dissipated in W 15.5 WEquipment suppliedCorrector filter power factor compliant with IEC 61000-3-2output protection type Against overload, protection technology: manual or automatic resetAgainst overvoltage, protection technology: 30...32 V, manual resetAgainst short circuits, protection technology: manual or automatic resetAgainst undervoltage, protection technology: intervention with U Thermal, protection technology: automatic resetConnections - terminalsRemovable screw terminal block: 2 x 2.5 mm², for diagnostic relayScrew terminal blocks: 3 x 0.5...3 x 4 mm², (AWG 22...AWG 12) for input connectionScrew terminal blocks: 1 x 0.5... 1 x 4 mm², (AWG 22...AWG 12) for input earth connectionScrew terminal blocks: 4 x 0.5...4 x 4 mm², (AWG 22...AWG 12) for output connectionScrew terminal blocks: 1 x 0.5...1 x 4 mm², (AWG 22...AWG 12) for output grounding connectionStatus LED1 LED (green and red) output voltage1 LED (green, red and orange) output currentdepth125 mmheight143 mmwidth56 mm product weight0.7 kgoutput connectionParallelSeries

    €186,90

  • ABLM1A24012 | Schneider Electric Switching power supplies

    SCHNEIDER ELECTRIC ABLM1A24012 | Schneider Electric Switching power supplies

    Schneider Electric Switching power supplies, 100-240 V AC, 24 V 1.2 A, single phase, Modular ABLM1A24012 The ABLM regulated switching power supply (SMPS) provides direct current voltage. It has a rated input of 100V to 240V AC, a rated output current of 1.25A at 24V DC, and a rated power output of 30W. It is ideal for providing the DC voltage needed for automation equipment designed for industrial applications , commercial and residential. Examples: transportation, packaging, inspection, food and beverage, mining, oil and gas, and water. It is installed on an omega rail or fixed with a screw. Dimensions: Width 36mm, Height 91mm, Depth 55.6mm. Provides protection against overloads and short circuits with automatic restart after correction of the overload/short circuit source. Weight: 0.170kg. It is a rail mount industrial power supply. It complies with EN62368-1, ENIEC61010-1/2-201, ENIEC61204-3, EN61000-6-1/2/3/4, EN61000-3-2-3, UL62368-1, UL61010-2-201/ -1-201, CSAC22.2No62368-1/No61010-2-201/No61010-1. The product is CE, CUL, RCM and CB Scheme certified. The Acti9 iC60 range of miniature circuit breakers is recommended for its protection. The type of protection is 4A, curve B or C. On the front there is an LED indicating the presence of DC output voltage and a QR code for access to the latest technical documentation. Thanks to their modular housing, they can be installed in industrial enclosures or panels by clip fixing on an omega (DIN) rail. Provides energy to automated systems. Designed for simple machines and applications, modular power supplies are appreciated above all for their extreme compactness. Product Range Modicon Power SupplyProduct Type Power SupplyPower Supply Type Switching ModeVariant Option ModularMaterial Cassette PlasticNominal Input Voltage 100...240 V AC single phase100...240 V AC phase to phase Rated Power In W 30 WOutput Voltage 24 V DCOutput Power Supply Current 1.25 AVoltage Limits In Input 90...264 V ACNominal Network Frequency 50…60 HzMaximum Leakage Current 0.25 mA 240 V ACType of Protection Input Integrated fuse (not replaceable) 3.15 AExternal protection (recommended) 20 A Curve BExternal protection (recommended) 20 A Curve CExternal protection (recommended) ) 4 A Curve BExternal protection (recommended) 4 A Curve CInrush Current 25 A at 115 V50 A at 230 VModules 18 mm 0.48 at 115 V AC0.38 at 230 V ACEfficiency 87 % at 115 V AC87 % at 230 V ACOutput Voltage Adjustment 24...28 V

    €77,50

  • ABL8RPS24030 | Schneider-Electric Universal power supply

    SCHNEIDER ELECTRIC ABL8RPS24030 | Schneider-Electric Universal power supply

    Schneider-Electric Universal power supply ABL8RPS24030 The Schneider Electric ABL8 regulated switching mode power supply provides direct current voltage, has a rated input of 100 to 500 Vac, a rated output current of 3 A at 24 Vdc and a rated power of 72 watts. PresentationProduct rangeModicon Power SupplyProduct typePower supplypower supply typeSwitching modeNominal input voltage100...120 V AC single phase, terminals: N-L1200...500 V AC phase to phase, terminals: L1-L2nominal power in W 72 Woutput voltage 24 V DCoutput power supply current 3 Aadmissible temporary current amplification1.5 x In (for 4 s)anti-harmonic filterCurrents low frequency harmonicsTechnical characteristicsinput voltage limits170...550 V AC85...132 V ACInrush current30 A18 mm modules0.51 at 240 V AC0.59 at 120 V ACefficiency87 %Output voltage adjustment24.. .28.8 V adjustablepower dissipation in W 7.8 WEquipment suppliedPower factor corrector filter compliant with IEC 61000-3-2output protection type Against overload, protection technology: manual or automatic resetAgainst overvoltage, protection technology: 30...32 V, manual resetAgainst short circuits, protection technology: manual or automatic reset Against undervoltage, protection technology: intervention with U Thermal, protection technology: automatic resetconnections - terminalsScrew terminal blocks: 3 x 0.5...3 x 4 mm², (AWG 22...AWG 12) for input connectionScrew terminal blocks: 1 x 0.5...1 x 4 mm², (AWG 22...AWG 12) for input earth connection Screw terminal blocks: 4 x 0.5...4 x 4 mm², (AWG 22...AWG 12) for output connectionScrew terminal blocks: 1 x 0.5...1 x 4 mm², (AWG 22...AWG 12) for output ground connectionStatus LED1 LED (green and red) output voltage1 LED (green, red and orange) current outputdepth125 mmheight125 mmwidth45 mmproduct weight0.3 kgoutput connectionParallel

    €143,85

  • ABLM1A24025 | Schneider-Electric 24V 2.5A modular power supply

    SCHNEIDER ELECTRIC ABLM1A24025 | Schneider-Electric 24V 2.5A modular power supply

    Schneider-Electric 24V 2.5A modular power supply ABLM1A24025 The ABLM regulated switching power supply (SMPS) provides direct current voltage. It has a rated input of 100V to 240V AC, a rated output current of 2.5A at 24V DC and a rated power output of 60W. It is ideal for providing the DC voltage needed for automation equipment designed for industrial applications , commercial and residential. PresentationProduct rangeModicon Power SupplyProduct typePower supplypower supply typeSwitching modeVariant optionModularNominal input voltage100...240 V AC single phase100...240 V AC phase to phasenominal power in W 60 Woutput voltage 24 V DCoutput power supply current 2.5 ATechnical characteristicsinput voltage limits90...264 V ACInput protection typeIntegrated fuse (non-replaceable) 3.15 AExternal protection (recommended) 20 A Curve BExternal protection (recommended) 20 A Curve CExternal protection (recommended) 10 A Curve BExternal protection (recommended) 6 A Curve CInrush current30 A at 115 V60 A at 230 V18 mm modules0.50 at 115 V AC0.39 at 230 V ACefficiency90 % at 115 V AC90 % at 230 V ACpower dissipated in W  6.5 Wcurrent absorptionTurn-on time Holding time> 20 ms 115 V AC> 60 ms 230 V ACStartup with capacitive loads3000 µFresidual ripplemean time between failures (MTBF)1300000 H at 25 °C, full load700000 H at 55 °C, 80 % loadoutput protection type Against overload and short circuits, protection technology: automatic resetAgainst over temperature, protection technology: manual resetAgainst overvoltage, protection technology: manual resetconnections - terminalsConnection to screw: 0.5...2.5 mm², (AWG 20...AWG 14) without wire end ferrule for outputScrew connection: 0.5...1.5 mm², (AWG 20. ..AWG 16) with wire end ferrule for outputScrew connection: 0.5...1.5 mm², (AWG 20...AWG 16) for inputline and load regulation Status LED1 LED (green) output voltagedepth55.6 mmheight 91 mmwidth53 mmproduct weight0.221 kgoutput connectionSerialParallelmounting supportTop hat type TH35 -15 rail conforming to IEC 60715Top hat type TH35-7.5 rail conforming to IEC 60715Double profile DIN railpanel mountingpower supplySELV conforming to IEC 60950-1 SELV compliant with IEC 60204-1SELV compliant with IEC 60364-4-41dielectric strength3000 V AC input / output

    €97,99

  • ABL8RPM24200 | Schneider Electric Power supply with comm. regulated

    SCHNEIDER ELECTRIC ABL8RPM24200 | Schneider Electric Power supply with comm. regulated

    Schneider Electric Power supply with comm. regulated - 1 or 2 phases - 100..240 V AC - 24 V - 20 A ABL8RPM24200   PresentationProduct rangeModicon Power SupplyProduct typePower supplypower supply typeSwitching modeNominal input voltage100...120 V AC single phase, terminals: N-L1200...240 V AC phase to phase, terminals: L1-L2nominal power in W480 Woutput voltage24 V DCoutput power supply current20 Aadmissible temporary current amplification1.5 x In (for 4 s )anti-harmonic filterLow frequency harmonic currentsTechnical characteristicsinput voltage limits85...132 V AC170.. .264 V ACinrush current30 A18 mm modules0.68 at 240 V AC0.69 at 120 V ACefficiency88 % Output voltage adjustment24...28.8 V adjustablepower dissipated in W57.6 Wequipment suppliedPower factor corrector filter compliant with IEC 61000-3-2output protection typeAgainst overload, protection technology: manual or automatic resetAgainst overvoltage, protection technology: 30...32 V, manual resetAgainst short circuits, protection technology: manual or automatic resetAgainst undervoltage, protection technology: tripping with U Thermal, protection technology: automatic reset connections - terminalsRemovable screw terminal block: 2 x 2.5 mm², for diagnostic relayScrew terminal blocks: 3 x 0.5...3 x 4 mm², (AWG 22 ...AWG 12) for input connectionScrew terminal blocks: 1 x 0.5...1 x 4 mm², (AWG 22...AWG 12) for input earth connectionTerminal blocks screw: 4 x 0.5...4 x 4 mm², (AWG 22...AWG 12) for output connectionStatus LED1 LED (green and red) output voltage1 LED (green, red and orange) output currentdepth145 mmheight125 mmwidth146 mmproduct weight1.6 kg output connectionSeriesParallelmarkingCEmounting support35 x 7.5 mm symmetrical DIN rail35 x 15 mm symmetrical DIN railoperating positionVerticalpower supplySELV conforming to IEC 60950-1SELV conforming to IEC 60204-1SELV conforming to IEC 60364-4-41 dielectric resistance2500 V with between input and ground insulation3000 V with between input and output insulation500 V with between output and ground insulation

    €187,99

Cos’è un alimentatore nell’Automazione Industriale? 

Un alimentatore è un componente essenziale delle apparecchiature industriali che converte l'energia elettrica da una forma (corrente alternata CA) a un'altra (corrente continua CC) per fornire la potenza richiesta a un carico. In poche parole, aumenta o diminuisce la tensione o regola la potenza per soddisfare l'esigenza specifica e una tensione di uscita uniforme. 

Normalmente, per ottenere elettricità, utilizziamo la corrente alternata commerciale, che viene inviata direttamente dalla centrale elettrica. Tuttavia, la maggior parte degli articoli elettronici, come apparecchiature per ufficio, apparecchiature per l'automazione industriale, ecc., non possono essere utilizzati con tensione CA a causa dei circuiti integrati e dei componenti elettronici utilizzati al loro interno. Se utilizziamo l’alta tensione per utilizzarli, i sistemi di automazione sono soggetti a guasti, danni, inefficienza e potenziali rischi per la sicurezza. In questo caso l'alimentatore aiuta a gestire l'energia elettrica in base alla specifica richiesta. 

Importanza dell'alimentazione nell'automazione PLC 

  • Tempi di inattività: quando viene a mancare l'alimentazione al PLC, si spegne automaticamente. Per questo motivo, può causare tempi di inattività significativi, riduzione della produttività e persino danni ad apparecchiature o prodotti. Un'alimentazione adeguata garantisce livelli di tensione e corrente stabili in base alla domanda specifica, evitando possibili interruzioni e tempi di inattività. 
  • Riduci la perdita di dati: i dati potrebbero andare persi o danneggiati a causa di un'interruzione imprevista dell'alimentazione. Questi gravi problemi possono essere ridotti al minimo con un'alimentazione adeguata, soprattutto nei sistemi di controllo di processo o di sicurezza. 
  • Energia affidabile: improvvise interruzioni di corrente o fluttuazioni di tensione durante la produzione possono portare a riparazioni costose e aumentare i tassi di guasto del prodotto. Gli alimentatori industriali proteggono le apparecchiature dalle sovratensioni regolando i livelli di tensione, filtrando il rumore elettrico e fornendo una fonte di alimentazione coerente e stabile. 
  • Rischi per la sicurezza: un'improvvisa interruzione di corrente o un altro problema può rappresentare un grave pericolo per la sicurezza del personale e delle apparecchiature. Ecco perché un alimentatore affidabile e di alta qualità può essere una salvezza per garantire il funzionamento corretto e sicuro dei sistemi PLC. 
  • Danni ai componenti: picchi di tensione o fluttuazioni di potenza possono danneggiare le parti elettroniche sensibili del sistema, portando a costose riparazioni o sostituzioni. 
  • Personalizzabile: molti PLC e sistemi di automazione hanno requisiti di alimentazione specifici. Questo è il motivo per cui alcuni alimentatori industriali sono configurabili, il che consente loro di essere adattati alle esigenze specifiche di diversi tipi di apparecchiature. 

Quali sono I 3 tipi di alimentatori? 

  • Lineare: gli alimentatori lineari vengono utilizzati principalmente quando sono richiesti controllo preciso ed eliminazione del rumore. Forniscono prestazioni ottimali in termini di stabilità e affidabilità. 
  • A commutazione: gli alimentatori a modalità commutata (SMPS) offrono versatilità nella polarità e maggiore efficienza, sebbene siano più complessi nel design. Le loro dimensioni ridotte e il basso costo li rendono un'alternativa interessante agli alimentatori lineari. La parte migliore è che riduce al minimo le perdite tra gli switch grazie alla loro maggiore frequenza operativa. 
  • Basati su batteria: gli alimentatori basati su batteria sono un terzo tipo di alimentatore e unità mobile di accumulo dell'energia che produce un rumore trascurabile che interferisce con i componenti elettronici. Ma perde potenza e non fornisce una tensione costante man mano che la batteria si scarica. 

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