Patent ID: 6437521
Filing Date: 2002-08-20
Classification: G05F

Abstract:
An electronic control circuit for adjusting a control voltage of a device to be controlled, the device comprising a first node and a second node, the control circuit comprising:a primary coil, a control bus comprising a first secondary coil, a first control diode, a first capacitor and a means for adjusting the control voltage, the means being parallel-connected with the first capacitor, the means and the first capacitor being further series-connected with the first secondary coil and the first control diode, a control voltage supply circuit comprising a series-connected second secondary coil, a second control diode and a second capacitor, the primary coil being connected between the first node and the second node of the device to be controlled, such that the primary coil receives, from the device to be controlled, a current that at least momentarily reaches a first value of zero.