tmd_63
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Use a LM2577 chip
I need a simple and cheap PSU circuit to get around 15V from a 12V supply.
The circuit does not need any fancy smoothing etc, must use cheap capacitors etc. No expensive chips or inductors. It only needs to supply a maximum of 1A and nominal around 400mA.
But I must stress the circuit use the least amount of components and must cost less than $2
Hi My friend dear tpetarI think just PCB will be over 2USD.
Wow what a high price is that for a coil ! what is type of it's core ? some days ago i bought a coil ( most of the times i prefer to wind my own coils in my home ) with inductance around 1mH for one A , current ,Just coil at my place is around 1EUR
The schematic below will add a few volts to a positive supply.
It is typically a charge-pump doubler, or would be if the first capacitor were larger. However by adjusting the first capacitor downward, it carries less net current.
The smoothing capacitor reduces ripple. Its value can be adjusted as desired.
Except for the bias resistors, components must be able to carry up to 3 A peak.
The 15 ohm resistor is the load.
would this circuit work for increasing the voltage from 12v to 15v for car amplifier? --> https://www.amazon.com/NightFire-Fixed-Voltage-Regulator-Supply/dp/B005PREKOU
hi! what i am supposed to connect to the CLK? and what diodes i should use(talking about those 2 diodes in the picture)?
do you think this could handle the currency if used for car amplifier? or will the circuit fry?
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