Patent ID: 6154070
Filing Date: 2000-11-28
Classification: H03K

Abstract:
A control circuit comprising: a first input terminal; a second input terminal; an inverter circuit; a first logic circuit; a second logic circuit; a logic gate; and an output terminal; wherein the first input terminal is connected to an input of the inverter circuit and a first input of the second logic circuit; the output of the inverter circuit is connected to a first input of the first logic circuit, the second input terminal is connected to a second input of the first logic circuit and a second input of the second logic circuit, outputs of the first logic circuit and the second logic circuit are connected to inputs of the logic gate, the output of the logic gate is connected to the output terminal, and the first logic circuit outputs a first signal and the second logic circuit outputs a second signal that is opposite in logic level from the first signal only when the circuit is in an unstable state, such that when the first signal is at a first logic level the second signal is at a second logic level opposite the first logic level, and when the first signal is at the second logic level the second signal is at the first logic level.