Invention Grant
- Patent Title: Resonant-recovery power reduction techniques for pulse generation
- Patent Title (中): 用于脉冲发生的谐振恢复功率降低技术
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Application No.: US14547705Application Date: 2014-11-19
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Publication No.: US09455702B2Publication Date: 2016-09-27
- Inventor: P. Jeffrey Ungar , William C. Athas , Jeffrey G. Koller , Derek G. Pyne
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blank Rome LLP
- Main IPC: H03K5/13
- IPC: H03K5/13 ; H03K17/687 ; H02M1/08 ; H02M1/00 ; H02M3/158

Abstract:
The disclosed embodiments provide a circuit for driving a capacitive load. The circuit includes a first inductor with an input terminal and a load terminal, wherein the load terminal is coupled to the capacitive load. The circuit also includes four or more switching devices. The switching devices may hold a voltage on the load terminal at zero volts. Next, the switching devices may charge the capacitive load through the first inductor until the voltage on the load terminal reaches a first input voltage supplied by a voltage source. The switching devices may then hold the voltage on the load terminal at the first input voltage. Finally, the switching devices may discharge the capacitive load through the first inductor until the voltage on the load terminal reaches zero volts.
Public/Granted literature
- US20150137860A1 RESONANT-RECOVERY POWER REDUCTION TECHNIQUES FOR PULSE GENERATION Public/Granted day:2015-05-21
Information query
IPC分类: