Power Supply and Voltage Source

No electrical device will work without electric energy, that´s no-brainer, however, you need to supply the right voltage. That is something a voltage source can help you with.

To set the record straight, a voltage source does not actually supply the the energy itself (except for a battery), it rather converts the energy. Generally speaking, the input energy entering a voltage source equals the output energy (with some losse), while altering the ratio between voltage and current.

Bestsellers

Holder for 18650 batteries
In stock (908 pcs)
LA123025
 
€0,11
(€0,09 excl. VAT)
 
€0,73
(€0,60 excl. VAT)
Step-down converter with LM2596
Naskladníme cca 3.4.
LA122003
 
€1,47
(€1,21 excl. VAT)

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415 items total

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LaskaKit stavebnice 100w powerbanky pro 4x 21700 baterie 1
€21,84 excl. VAT
€26,43

Kit for a powerful 100W power bank designed for 4× 21700 Li-Ion cells allows you to assemble a compact and very powerful energy source with support for modern fast charging...

LA250007G
zdroj 2
€1,96 excl. VAT
€2,37

12V/110V power supply for flexible neon tubes up to 5m

LA122035A
12V/110V source for flexible neon tubes up to 10m
€3,64 excl. VAT
€4,40

12V/110V power supply for flexible neon tubes up to 5m

LA122035C
12V/110V source for flexible neon tubes up to 20-50m
€13,41 excl. VAT
€16,23

12V/110V power supply for flexible neon tubes up to 20-50m

LA122035B
LED indikátor stavu kapacity 1S Lipo Li-ion baterie
€1,28 excl. VAT
€1,55

LED indicator of the capacity status of one Lipo Li-ion battery on the voltage base between four states.

LA2400051
20W power bank kit for 6x 18650 batteries, transparent
€11,73 excl. VAT
€14,19

Transparent Power Bank Kit for 6x 18650 Li-ion Batteries is designed for demanding users who require modern fast charging standards and high output power up to 22.5 W.

LA250033Y
LED indikátor stavu kapacity 2S Lipo Li-ion baterie
€1,28 excl. VAT
€1,55

Module for capacity indication of up to two Li-ion batteries with 4 LEDs.

LA2400052
3M 9FT With 2 AA Battery Pack Decoration Auto Car EL Wire Rope Tube Neon Lights.jpg Q90
€1,62 excl. VAT
€1,96

2xAA power supply for flexible neon tubes up to 3m

LA122039
LED indikátor stavu kapacity 4S Lipo Li-ion baterie
€1,28 excl. VAT
€1,55

Module for capacity indication of up to four Li-ion batteries with 4 LEDs.

LA2400054
12v
€2,29 excl. VAT
€2,77

AILI ACDC03 230V AC-DC power supply 12V/1A, isolated

LA121079B
5V
€2,29 excl. VAT
€2,77

AILI ACDC03 230V AC-DC power supply 5V/2A, isolated

LA121079A
Modul stabilizátoru napětí AMS1117 5V
€0,37 excl. VAT
€0,45

Voltage regulator module that locks the voltage to 5V.

LA122023C
LaskaKit automaticky buck boost tps63020 napajeci menic 1 8 5 5v 2a 1
Meshtastic
€3,98 excl. VAT
€4,81

The TPS63020 is an automatic buck-boost (step-up/step-down) voltage converter designed for applications that require stable output voltage even with variable input voltage. This...

LA122069A
Bateriový box 1x18650 do DPS
€0,60 excl. VAT
€0,73

Plastic box for Li-ion batteries type 18650 with feet for soldering to the PCB.

LA123011
H8ae80cd9da6c48a4b2bce63e420a5bc9g
€1,28 excl. VAT
€1,55

Battery box 1x21700 for PCB

LA123089
Bateriový box 2x CR2032 6V s vypínačem
€0,47 excl. VAT
€0,57

Battery box for two CR2032 batteries with switch and wire outputs

LA123047
Bateriový box 2x18650 SMD do DPS
€1,85 excl. VAT
€2,24

Battery box for one 18650 battery, which can be soldered to the PCB.

LA123063
Bateriový box 2xAA uzavřený s vypínačem
€0,94 excl. VAT
€1,14

Plastic holder for two AA batteries with switch.

LA123033
Bateriový box 3x18650 drátové vývody
€0,60 excl. VAT
€0,73

Battery box for three 18650 batteries with wire outlets.

LA123059
Bateriový box 3xAA uzavřený s vypínačem
€0,94 excl. VAT
€1,14

Plastic holder for three AA batteries with switch.

LA123034
Bateriový box 4x18650 drátové vývody
€0,88 excl. VAT
€1,06

Battery box for four 18650 batteries with wire outlets.

LA123060
Bateriový box 4xAA uzavřený s vypínačem
€1,15 excl. VAT
€1,39

Holder for four AA batteries with wire outlets, lockable case and switch.

LA123035
Bateriový box 6xAA s konektorem
€1,28 excl. VAT
€1,55

Battery box for six AA batteries with a power jack for connection to, for example, the Arduino Uno or Mega

LA123009
Bateriový box CR2032 do DSP
Battery box CR2032 for DSP
In stock (205 pcs)
€0,13 excl. VAT
€0,16

Battery box for CR2032 button cell battery for power supply to PCB.

LA123010

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415 items total
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AC-DC power supplies use AC current as input voltage, mostly from the mains, and DC voltage as output. DC power connectors allow you to safely connect these power supplies to your devices. For higher voltages, you can use 12V power adapter, 24V power adapter or a 12V mains adapter.

LDO controllers, Step-Up Converters a Step-Down Converters operate only with DC voltage.

Batteries and accumulators store electrical energy in chemical reactions based on oxidation-reduction potential. In case you plan to use a battery such as Li-ION 18650 or 3.7V Li-ION battery, it's a good idea to also buy a dedicated charger and protection. Battery protection ensures safe operation and long life. For proper charging, use the guide on How to charge Li-ION batteries a how to properly charge a Li-POL battery.

If you are using CR2032 lithium battery, it is also important to have the right connector, such as 9V battery connector.

Solar battery charger is a great solution for eco-friendly power supply. USB connector a USB C adapter again you will need for connecting and powering modern devices. Mini USB charger a 2A charger are also useful for fast and efficient charging.

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