Patent ID: 8723552

Claim:
A floating gate driver circuit comprising: a driver connected to a power supply terminal and a floating node; a bistable circuit connected to the driver, the power supply terminal and the floating node, and having a first input terminal to receive a first logic signal and a second input terminal to receive a second logic signal to thereby define a control signal for the driver; a pass element connected to the power supply terminal or the floating node, having a first input terminal to receive a first voltage, a second input terminal to receive a second voltage, a first output terminal connected to the first input terminal of the bistable circuit, and a second output terminal connected to the second input terminal of the bistable circuit, to thereby generate the first logic signal and the second logic signal according to the first voltage and the second voltage, and including a first load connected to the first output terminal of the pass element and a second load connected to the second output terminal of the pass element; a level shifter connected to the pass element and the power supply terminal, and having a first output terminal to provide the first voltage and a second output terminal to provide the second voltage; and a control logic circuit connected to the first input terminal and the second input terminal of the bistable circuit and to the first load and the second load of the pass element, and operative to control at least one of the first load and the second load of the pass element according to a voltage at the first input terminal of the bistable circuit and a voltage at the second input terminal of the bistable circuit; wherein each of the first load and the second load of the pass element includes a current source, a transistor, or a programmable impedance device.