Rfi suppression technique for switching circuits

Details Rfi suppression technique for switching circuits Rfi suppression technique for switching circuits

H - Electricity

04

B

323/4, 317/9

H04B 15/00 (2006.01) H02M 3/155 (2006.01) H02M 3/335 (2006.01)

Patent

CA 1275440

RFI SUPPRESSION TECHNIQUE FOR SWITCHING CIRCUITS Abstract A switching type power supply includes neutralizing circuitry to counteract current flow to equipment ground due to generated RF currents. This neutralizing circuitry includes an added transformer winding and a neutralizing capacitor to counteract and cancel specified leakage currents. This arrangement permits use of smaller filter capacitors and hence reduces the line frequency leakage current flow to equipment ground.

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