T
treez
Guest
Hi,
Page 122 of “power supply cookbook” (2nd Ed) by Marty Brown details the design of a 280W offline Half Bridge Converter in Current mode with slope compensation.
Current Mode is in theory not advised for Half Bridge converters due to potential imbalance of the rail splitting input capacitors.
However, can we actually say that as long as significant slope compensation is used, then Current mode is actually fine for Half Bridge SMPS’s?
The attached two LTspice simulations show two otherwise identical current mode Half Bridge converters. One is unstable, but the one with slope compensation is fine.
Page 122 of “power supply cookbook” (2nd Ed) by Marty Brown details the design of a 280W offline Half Bridge Converter in Current mode with slope compensation.
Current Mode is in theory not advised for Half Bridge converters due to potential imbalance of the rail splitting input capacitors.
However, can we actually say that as long as significant slope compensation is used, then Current mode is actually fine for Half Bridge SMPS’s?
The attached two LTspice simulations show two otherwise identical current mode Half Bridge converters. One is unstable, but the one with slope compensation is fine.