This DC-DC converter is designed to accept a range of input voltages that are present in a car’s electrical system, and provide a regulated 12v output. Nominally, the battery voltage is about 13.8v, but when the engine is being started, the voltage can often droop down to 6 or 7 volts for a short time, [...]
I used a main part is 2N3055 Transister and IC TL072 for pulse oscillator generator. The output have voltage +50V and -50V at 2A to 3A. You must is used this circuit for audio sound automotive or motorcycle amplifier. Circuit 12V to 50V dc converter for car by TL072 + 2N3055 PCB 12V to 50V [...]
The limitation of car supply voltage (12V) forces to convert the voltages to higher in order to power audio amplifiers. In fact the max audio power x speaker (with 4 ohm impedance) using 12V is (Vsupply+ – Vsupply-)^2/(8*impedance) 12^2/32 = 4.5Watts per channel, that is laughable… For powering correctly an amplifier the best is to [...]
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