TH166924B - Power converters and air conditioners - Google Patents

Abstract

Power converters with simple settings regarding the short-circuit operation of the device, while being able to prevent the high frequency harmonic current mixture of Power supply can be increased. A 1A power converter has 3 rectifiers that rectify the AC power supply 2 and smoothing circuit 5 that smooths the output of the rectifier 3 and the reactive 4 directly connected to the path from the AC supply 2 to the smoothing circuit, the current 3, and the short circuit. 6 that performs the short circuit work of the electric current at Flows from the AC power supply 2 through the actuation 4 and the short circuit actuation control 9 that triggers a series of short circuits (N cycles) so that when the output voltage Vd of the smoothing circuit 5 follows the voltage. The target power Ed * increases, reduces the working time, short circuit every nth level in each cycle for that number of cycles With the specified ratio P (N) every nth step in each cycle, together with the control of the rectifier working time that is the short-working period. The nth stage of every cycle in each cycle shall be the time interval between the nth stage of each cycle. Figure 1 is used.

Claims (1)

1.Power converter with A rectifier that rectifies the AC power supply and a smoothing circuit that smoothes the output of such rectifier and reacts accordingly.