100kHz 600W power factor correction circuit

Published:2011/7/12 21:36:00 Author:TaoXi | Keyword: 100kHz, 600W, power factor, correction circuit | From:SeekIC

The 100kHz 600W power factor correction circuit (PFC) is as shown in the figure, it uses the ZVT--PWM boost topology. In order to reduce the cost, the main switching tube uses the IGBT tube with the TO-220 appearance which is produced by the IR company; the IRGB30U is connected with the 4.4 nF capacitance, and it has the softening switch function and it reduces the turn-off power loss. Although the auxiliary switch has the low RMS current, but it bears the high turn-off current, so we use the MOSFET tube IRFP450(500V, 16A, 150W). The circuit output voltage is 380V, the input voltage is AC 90～260V. The efficiency of this power correction circuit has relation ship with the operating range of the input voltage. When the ZVT PFC circuit is operating in the 100kHz, and the AC input voltage is in the range of 180～260V, the total efficiency is 97% ~ 98%.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/100kHz_600W_power_factor_correction_circuit.html

Print this Page | Comments | Reading(3)