DC voltage-stabilizing circuit diagram

Published:2011/6/1 19:47:00 Author:Lucas | Keyword: DC , voltage-stabilizing | From:SeekIC

The DC voltage-stabilizing circuit in the power supply system is shown as the figure, 170V AC voltage is one-way bridge rectified by KC403, then filtered by the second order II type network, and then it will output 170V DC voltage. The data is uploaded by the 170V DC cable. In order to prevent interference from following circuit on the front-end circuit, each diode in 170V rectifier bridge is connected a 0.1μF capacitor in parallel, in addition, these capacitors can be well absorbed the switching noise from diode. In the power filter circuit, the capacitor voltage value is generally 2 times of the input voltage, and capacitance is relatively large, so that the AC component is filtered out easier, the output voltage is smoother.



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