This is 5V switching regulator circuit using transistor, decreases voltage or Step down voltage converter circuit, decrease 6-18V into 5V at current 100mA.
An electronic device needs to use a power. We have a lot of power supply circuit. We recommend the example tag: (It may make you find the circuit easier.)Fixed voltage regulator :: 3-volts :: 5-volts :: 6-volts :: 9-volts :: 12-volts :: 15-volts :: Protection :: Transformerless :: Negative Power Supplies :: Dual output power supply :: Variable DC Power Supply :: 0-30V DC Power SupplyAdjustable DC power supplies :: Switching power supply :: High current :: High voltage :: Zener Diode Regulators :: Multi voltage regulated :: 7805 Regulator Circuits :: LM317 Circuits :: PC power supply circuits
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This is 5v 12v dual power supply circuit using 2N3055 and Zener diode for 12V then to LM309 or IC-7805 dc regulator IC for 5V output which easy circuit [...]
This is 38V Regulated Power supply. We use the Simple Zener diode voltage regulator as main ideas, and two transistors to increase current to the load at 1A-2A.
The simple 6V Power supply circuit. We have a lot of circuits for you. Some ideas may be good for you. All circuits use normal component, easy making.