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AC-DC Regulator Kit

AC-DC Regulator Kit

Regular price £2.99 GBP
Regular price Sale price £2.99 GBP
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AC-DC Regulator by MitchElectronics that converts a low-voltage AC source to a 5V DC source using a full-wave rectifier and 7805 regulator. Perfect for beginners!

Many circuits require a voltage supply that is constant and unchanging and such circuits would include radios, calculators, computers, monitors, phones, and even cars. Batteries are a good source of constant voltage but since they are usually limited in size, weight, and power capacity the mains electricity are often used. But this source of electricity is constantly changing as it is AC (alternating current), which is not suitable for DC (direct current) circuits. Therefore, an AC-DC converter is needed to convert the alternating current into a direct current! This kit will not only do this but will also regulate this converted DC source so that it outputs a smooth constant 5V which can be used to power many projects.

Product specifics

  • Component Count: 18
  • Battery Powered?: No
  • Operating Voltage: 7Vpp to 16Vpp AC in
  • Operating Frequency: AC Input up to 1KHz
  • Output Voltage: 5V
  • Output Current: 200mA Max
  • Dimensions (PCB): 60mm x 31mm
  • Mounting Holes: No
  • Prebuilt: No – Kit form
  • Batteries Not Included

Included in this kit

  • 2 x 100nF Capacitors
  • 1 x 100uF Capacitor
  • 1 x 470uF Capacitor
  • 6 x 1N5817
  • 1 x 7805
  • 1 x Red Wire
  • 2 x Green Wire
  • 1 x Black Wire
  • 1 x PCB


The AC-DC Regulator Kit is highly ideal for teaching students about AC rectification at low voltages. The use of a regulator, capacitors, and rectifier show all stages of a basic power supply while the low component count allows for the kit to be constructed in under an hour. The kit is also useful in converting AC power from small motors into a DC source for experimentation with power generation as well as the rectification of AC voltages after being stepped down by a transformer. If a battery requires stepping down then the 5V source kit should be chosen instead. If a dual-rail supply is required from a single supply then the Simple Power Supply should be chosen instead.


Note that product specifics such as output frequency depend on the tolerance of the components. The numbers provided here are an approximation only.

All parts sold by MitchElectronics are compliant with RoHS and REACH directives which ensure that they can be used in commercial environments as well as complying with environmental laws.


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