Patent ID: 6815845
Filing Date: 2004-11-09
Classification: H02M,H03K

Abstract:
A circuit for reversing the polarity of a high voltage power source, said circuit comprising:a first input terminal; a second input terminal, said high voltage power source being electrically coupled between said first input terminal and said second input terminal; a first output terminal; a second output terminal; a first switch electrically coupled between said first input terminal and said first output terminal, said first switch configured to change from a first state to a second state when a first control signal is received; a second switch electrically coupled between said second input terminal and said second output terminal, said second switch configured to change from a first state to a second state when a second control signal is received; a third switch electrically coupled between said first input terminal and said second output terminal, said third switch configured to change from a first state to a second state when a third control signal is received; a fourth switch electrically coupled between said second input terminal and said first output terminal, said fourth switch configured to change from a first state to a second state when a fourth control signal is received; and at least one switch driver configured to provide at least one of said first control signal, said second control signal, said third control signal and said fourth control signal, wherein said provided control signal is a low voltage signal.