Patent ID: 7692608
Filing Date: 2010-04-06
Classification: G09G

Abstract:
1. An energy recovery circuit comprising: a capacitive load between a first electrode and a second electrode; a source capacitor to recover energy from the capacitive load via the first and the second electrodes; a recovery path switch to form a recovery path for supplying energy via the first and the second electrodes from the capacitive load to a side of the source capacitor; a plurality of charge path switches to control a charge path for supplying energy from the source capacitor to a side of the capacitive load; a sustain voltage source for generating a high potential voltage of a sustaining pulse; a first inductor formed on the charge path; a second inductor formed between the first electrode and the source capacitor on the recovery path; a first diode coupled between the second inductor and the sustain voltage source; a second diode coupled between a node of both the source capacitor and the first inductor and the sustain voltage source; and a third diode coupled between the source capacitor and the first inductor.