87results about How to "Realize current sharing" patented technology

This invention proves a uniform current method and a device for stagger-controlling power-factor correcting circuit which samples induction currents of two parallel units and applies a uniform current control method that two control chips control two power switches separately and share one primary current to guarantee induction current of each path the same to realize the uniform current.

The invention provides a -48V direct current single system double-power-source device. The -48V direct current single system double-power-source device has the advantages that first, the -48V direct current single system double-power-source device has the same capacity of supplying electric power to communication equipment as a traditional communication power source. Double power sources in a single system can simultaneously supply electric power for loads and also can disconnect any way of power output, the -48V direct current single system double-power-source device can be used as a single system single power source power supply unit, the output capability of two rectifier screens is not limited and can completely support the loads of clients. Second, in the process of using the double power sources of the single system, the output currents of the double power sources are respectively detected and calculated, the output voltage of each way of power source is automatically adjusted through software according to the sizes of the output currents, the purposes of adjusting and outputting the voltage difference between ends of a diode are achieved, therefore current sharing between the two ways of power sources is achieved, after current sharing of the diode is achieved, the maximum current sharing error between the two ways of power sources can not be more than 10%, and the demand on balance of the load rate between systems can be well met.