Patent ID: 9106143
Filing Date: 2015-08-11
Classification: H02M

Abstract:
1. An AC/DC converter comprising: an input rectifier circuit connected in series with a primary winding of an isolating transformer and to a chopper switch driven by a control circuit using pulse width modulation on the basis of a signal representative of a primary current, wherein the isolating transformer comprises: wherein the converter comprises an analog correction circuit for correcting the primary current, which circuit is connected to the control circuit and to a measurement element delivering a signal representative of the primary current, and is arranged to transform said signal into a triangular signal suitable for driving the control circuit, wherein the analog correction circuit comprises a main having connected in series therein, in succession: a second switch connected firstly to the main line between the second resistor and the control circuit, and secondly to a third resistor that is also connected to ground; and a second capacitor connected firstly to the main line between the connection between the second switch and the control circuit, and secondly to ground.