Abstract: In one embodiment, a method of forming a semiconductor device may include forming a sense resistor to receive a high voltage signal and form a sense signal that is representative of the high voltage signal. An embodiment of the sense resistor may optionally be formed overlying a polysilicon resistor. The method may also have an embodiment that may include forming a plurality of capacitors in parallel to portions of the sense resistor wherein the plurality of capacitors are connected together in series.

Abstract: In one embodiment, a method of forming a semiconductor device may include forming a sense resistor to receive a high voltage signal and form a sense signal that is representative of the high voltage signal. An embodiment of the sense resistor may optionally be formed overlying a polysilicon resistor. The method may also have an embodiment that may include forming a plurality of capacitors in parallel to portions of the sense resistor wherein the plurality of capacitors are connected together in series.

Abstract: A power converter includes a primary controller having a control voltage terminal for receiving electrical power and a monitor terminal electrically coupled to an input sensing node with an input voltage varying periodically below a first start threshold voltage to define valleys. The power converter includes a first current source configured to drive a first electrical current from the monitor terminal to the control voltage terminal in response to the input voltage being less than the first start threshold voltage. A delay timer delays driving the first electrical current to center a supply time interval within a valley. A second current source drives a second electrical current from the monitor terminal to the control voltage terminal in response to the input voltage being less than a second start threshold voltage to reduce an impedance of the monitor terminal when the input voltage is in a valley.

Abstract: A power converter includes a primary controller having a control voltage terminal for receiving electrical power and a monitor terminal electrically coupled to an input sensing node with an input voltage varying periodically below a first start threshold voltage to define valleys. The power converter includes a first current source configured to drive a first electrical current from the monitor terminal to the control voltage terminal in response to the input voltage being less than the first start threshold voltage. A delay timer delays driving the first electrical current to center a supply time interval within a valley. A second current source drives a second electrical current from the monitor terminal to the control voltage terminal in response to the input voltage being less than a second start threshold voltage to reduce an impedance of the monitor terminal when the input voltage is in a valley.