The LM317T output current can be increased by using an additional power transistor to share a portion of the total current. The amount of current sharing is established with a resistor placed in series with the 317 input and a resistor placed in series with the emitter of the pass transistor. In the figure below, [...]
Today I searches the circuit in old book. Meet power supply circuit. very plentiful may advantage with friends. Then bring see this circuit basically the base of DC voltage Regulator follow the circuit gives voltage , get +13V and -13V by it uses Zener Diode . Perform maintain one’s position voltage. Be stable and use [...]
Here is Circuit power supply +20V and -20V 5A,Use IC LM338.
Nick initially adjusted the quiescent current to 3.5A but found after listening tests that increasing this to 4A gave a noticeable improvement. Even at an Iq of 4A the amps run cool due to the substantial heatsinking (0.5degC/W for each output device and each LM338K). [...]
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