Patent ID: 7492208

Claim:
A MOSFET circuit comprising: a first MOS transistor having a first number of cells, a second MOS transistor having a second number of cells, the second number being less than the first number and the second MOS transistor being provided with a source-drain path in parallel with a source-drain path of the first MOS transistor between a voltage source and reference potential, a Zener diode coupled between a gate of the first MOS transistor and a gate of the second MOS transistor, wherein the Zener diode is further coupled between the gate of the second MOS transistor and a control input of the MOSFET circuit, and wherein the Zener diode is forward biased from the control input to the gate of the second MOS transistor, a first resistor connected in parallel with the Zener diode, and a second resistor connected in series with the parallel circuit formed by the Zener diode and the first resistor between the control input and the gate of the second MOS transistor.