Invention Grant
- Patent Title: Dimmer detector for bleeder circuit activation
- Patent Title (中): 用于泄放电路激活的调光探测器
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Application No.: US14246770Application Date: 2014-04-07
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Publication No.: US09408261B2Publication Date: 2016-08-02
- Inventor: Christian Pura Angeles , Marvin C. Espino
- 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 ; H02M7/155 ; H02M7/217 ; H02M1/00

Abstract:
A circuit to be utilized for an LED driver bleeder activation. The circuit comprises a circuit block for timing a duration of any removed portion of a rectified line signal. The input of the circuit to be coupled to receive the phase controlled rectified line signal through a voltage divider. Comparing the divided rectified line signal with a threshold voltage and output a comparison result. A timer coupled to the comparator and responsive to the comparison result to time the duration of the removed portion of the rectified line signal and activate the bleeder activation circuitry to turn on the switching element of the bleeder to sink a controlled current from the input line.
Public/Granted literature
- US20140333228A1 DIMMER DETECTOR FOR BLEEDER CIRCUIT ACTIVATION Public/Granted day:2014-11-13
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