Patent ID: 6876241
Filing Date: 2005-04-05
Classification: H03K

Abstract:
1. A method of producing pulses from a sequence of input signal edges that alternate in polarity, the method comprising the steps of: (a) differentiating the transitions of the input signal edges; (b) amplifying the differentiated transition of step (a); (c) generating in response to the amplified transitions of step (b) a current whose polarity is determined by the polarity of the amplified transition to which it is in response; (d) coupling the current of step (c) into a node; (e) clamping the voltage at the node of step (d) to positive and negative values; (f) driving a load to a positive power supply voltage with a switched ON first FET when the node of step (d) is clamped to a first polarity; (e) driving the load to a negative power supply voltage with a switched ON second FET when the node of step (d) is clamped to a second polarity; and (f) one of the first and second FETs being an N-type FET and the other being a P-type FET.