The control chip of dc regulated power supply uses imported components and its design scheme avoids the disadvantages of traditional power supply due to the large volume of power frequency transformer. Compared with the traditional power supply, it has the characteristics of small volume, light weight and high efficiency. So what is the working principle of adjustable DC regulated power supply?

 

500kw load bank
 

Dc voltage regulator input AC voltage range in general 150V-260V, 220V effect is better, lower or higher than this range, its efficiency will decline. However, due to the large fluctuation of ac voltage input from the mains, the interference voltage such as high frequency pulse is filtered by the over-voltage absorption filter circuit, and then enters the DC switching voltage stabilizer power supply, AC sampling circuit and control execution circuit. The dc power is low. You can change the 60-320 v ac voltage to +5V, +12V, or -12 v dc voltage.

The control circuit of dc regulated power supply consists of SSR zero crossing switch, high power module and autotransformer with tap. RC absorption circuit is used between SSR to absorb overvoltage and overcurrent, so that SSR is not affected when switching. The control circuit controls the input voltage of 90-310V in the range of 190V-240V, and then feeds into the parameter voltage regulator for precise voltage regulation.

No matter how the mains changes, the oscillation frequency of the DC power supply will not change, so the output voltage will not change, voltage stability and high precision. Even if the input voltage waveform distortion is very large, it is also the standard sine wave after the output oscillation of the parameter voltage regulator, so the regulator power supply has strong anti-interference ability and purification ability.