Invention Grant
- Patent Title: High efficiency high voltage charge pump actuator for capacitive load
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Application No.: US15355062Application Date: 2016-11-18
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Publication No.: US09859791B2Publication Date: 2018-01-02
- Inventor: Moshe Haiut
- Applicant: DSP Group Ltd.
- Applicant Address: IL Herzliya
- Assignee: DSP GROUP LTD.
- Current Assignee: DSP GROUP LTD.
- Current Assignee Address: IL Herzliya
- Agency: Reches Patents
- Main IPC: H02M3/07
- IPC: H02M3/07 ; H02H7/00 ; B23K11/24 ; H02M1/42

Abstract:
A method for charge-reuse, the method may include performing multiple repetitions of the steps of: operating a second capacitive load while the second capacitive load is disconnected from a first capacitive load; wherein the second capacitive load is a Microelectromechanical systems (MEMS) capacitive load or a Nanoelectromechanical systems (NEMS) capacitive load; electrically coupling a first capacitive load to a second capacitive load via a path that comprises an inductor; charging the first capacitive load with a second charge provided from the second capacitive load; electrically disconnecting the first capacitive load, the second capacitive load and the inductor from each other; feeding the inductor with a supply current provided by a supply circuit; disconnecting the inductor from the supply circuit and coupling the inductor to the first capacitive load; charging the first capacitive load by the inductor; electrically coupling the first capacitive load to the second capacitive load via the path that comprises the inductor; charging the second capacitive load with a first charge provided from the first capacitive load; and operating the second capacitive load while the second capacitive load is disconnected from the first capacitive load.
Public/Granted literature
- US20170222547A1 HIGH EFFICIENCY HIGH VOLTAGE CHARGE PUMP ACTUATOR FOR CAPACITIVE LOAD Public/Granted day:2017-08-03
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