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:: Home » Power supply » Page 2

Power supply

Experiment increase current of 7805 with 2N3055 transistors

Last Updated on: October 23, 2022 by Apichet Garaipoom
Experiment increase current 7805 with 2N3055 transistors

Learn how to increase/boost up current of 7805 (or 78xx) regulators with helping the 2N3055 and others transistors. Read more

Categories Power supply, Basic Electronics Tags high current boost circuit, 2N3055, 7805 9 Comments

Constant current circuit using transistors

Last Updated on: October 23, 2022 by Apichet Garaipoom
Constant current circuit using transistors

Learning experiments with simple constant current circuit using transistors, a few plain parts, so helpful, especially Ni-HM battery charger. Read more

Categories Power supply, Battery Chargers, Basic Electronics Tags darlington transistor circuit, Nickel Metal Hydride Battery Chargers 5 Comments

3.7V to 5V Boost/Step-up DC converter circuit using MC34063

Last Updated on: March 23, 2023 by Apichet Garaipoom
3.7V to 5V Boost/Step-up DC converter circuit using MC34063

Here is 3.7V to 5V boost converter or step up switching circuit using MC34063 and a few parts,1N5819,100uH. For 200mA-300mA of load current. Read more

Categories Switching Mode, DC converters Tags MC34063 2 Comments

1.5V/3V Step down switching regulator(5V input) using KA34063

Last Updated on: October 26, 2022 by Apichet Garaipoom
1.5V Step down switching regulator(5V input) using KA34063

It is a 1.5V Step down Switching regulator using KA34063/MC34063. Imagine you have an old MP3 player it needs a 1.5V battery. But you only have the power bank, USB port 5V output. Sure, it doesn’t work. Therefore, this circuit is a good solution. Read more

Categories Switching Mode 1 Comment

0-30V Variable Power Supply at 3A

Last Updated on: October 21, 2022 by Apichet Garaipoom
0-30V Variable Power Supply at 3A

Let’s create a 0-30V 3A Laboratory DC Power Supply. High efficiency variable regulator that new circuit design using UA723 and TIP3055 Read more

Categories Variable Supply, Power supply Tags LM723 46 Comments
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Categories

  • Amplifiers (94)
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  • Power supply (86)
    • Variable Supply (20)
    • Switching Mode (15)
  • Inverters (14)
  • Battery Chargers (13)
  • DC converters (18)
  • Digitals & Microcontrollers (35)
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