Patent ID: 7660137

Claim:
A modulator comprising: a. a transformer having a primary winding and a secondary winding; b. a driver having a driver input node, to receive an input signal, and a driver output node coupled to the primary winding; and c. a high-voltage switching element having: i. a switch input node coupled to the secondary winding; ii. a first high-current source node; iii. a second high-current source node; iv. a transistor having a control terminal, a first current-handling terminal coupled to the first high-current source node, and a second current-handling terminal coupled to the second high-current source node; v. a first diode having a first anode coupled to the switch input node and a first cathode coupled to the control terminal of the transistor; and vi. a feedback path extending between the first current-handling terminal and the first anode, the feedback path including at least one second diode having a second anode and a second cathode.