Invention Grant
- Patent Title: Device and method for producing a dynamic reference signal for a driver circuit for a semiconductor power switch
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Application No.: US15313488Application Date: 2015-06-11
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Publication No.: US10171071B2Publication Date: 2019-01-01
- Inventor: Markus Rätz
- Applicant: POWER INTEGRATIONS, INC.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Johnson Kindness PLLC
- Agent Chirstensen O'Connor
- Priority: EP14172012 20140611
- International Application: PCT/EP2015/063060 WO 20150611
- International Announcement: WO2015/189332 WO 20151217
- Main IPC: H03K17/082
- IPC: H03K17/082 ; H03K5/08 ; H03K17/16

Abstract:
A device (442) for producing a dynamic reference signal (UREF) for a control circuit for a power semiconductor switch comprises a reference signal generator (442) for providing a dynamic reference signal (UREF), which has a stationary signal level after elapse of a predefined time following a switching process of the power semiconductor switch, a passive charging circuit (450) which is configured to increase a signal level of the dynamic reference signal in reaction to a switching of a control signal of the power semiconductor switch from an OFF state to ON state for at least one part of the predefined time above the stationary signal level, in order to produce the dynamic reference signal and an output (A) for tapping the dynamic reference signal (UREF).
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