The low-voltage, high-efficiency and stable-voltage adjustable power supply

Published:2011/6/15 23:33:00 Author:Borg | Keyword: low-voltage, high-efficiency, stable-voltage | From:SeekIC

The weakness of the ordinary serial stable power supply is that the drive working voltage of the adjuster is higher that the output voltage, which leads to the large pole voltage difference of c and e, so part of the power is consumed and the efficiency is reduced. For example, if the output current of the 12V stable power supply of a black-white TV set is about 1A, the voltage drop of the adjusting pipe is 7.5V, the power consumption of the adjuster is 7.5W. It is not only low-efficient, but also becomes a heat source which needs a large-size heat emitter to cool the adjusting pipe.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/The_low_voltage_high_efficiency_and_stable_voltage_adjustable_power_supply.html

Print this Page | Comments | Reading(3)