Invention Grant
- Patent Title: Bleeder circuit emulator for a power converter
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Application No.: US14498413Application Date: 2014-09-26
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Publication No.: US09648676B2Publication Date: 2017-05-09
- Inventor: Christian Angeles , Jose Requinton Del Carmen, Jr.
- 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: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H05B33/08
- IPC: H05B33/08 ; H02M3/156 ; H02M1/00

Abstract:
A bleeder circuit emulator for use in a power converter to compensate and increase the current demand from the Triac dimmer above its holding current. The circuit includes an input voltage modifier and a leading edge dimming detection circuit. The input voltage modifier receives an input voltage signal that is representative of a magnitude of an input voltage of the power converter and selectively provides a modified input voltage signal to an input of a controller in response to receiving a control signal. The modified input voltage signal is representative of a value that is less than the magnitude of the input voltage. The leading edge dimming detection circuit generates the control signal to engage the input voltage modifier to generate the modified input voltage signal in response to detecting leading edge dimming at an input of the power converter.
Public/Granted literature
- US20150137704A1 BLEEDER CIRCUIT EMULATOR FOR A POWER CONVERTER Public/Granted day:2015-05-21
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