Patent ID: 6246598
Filing Date: 2001-06-12
Classification: H02M,H03K

Abstract:
A modulator for driving a signal across a load, the load having first and second load terminals, the modulator comprising:a. a primary-side power source having positive and negative power-source terminals; andb. a primary winding connected between the positive and negative power-source terminals;c. a first secondary winding coupled to the primary winding and having first and second secondary-winding output terminals;d. a first drive transistor having:i. a first current-handling terminal connected to the first secondary-winding output terminal;ii. a second current-handling terminal; andiii. a control terminal connected to the second secondary-winding output terminal;e. a second secondary winding coupled to the primary winding and having third and fourth secondary-winding output terminals;f. a second drive transistor having:i. a first current-handling terminal connected to the second current-handling terminal of the first drive transistor;ii. a second current-handling terminal connected to the fourth secondary-winding output terminal; andiii. a control terminal connected to the third secondary-winding output terminal.