发明申请
- 专利标题： METHOD AND APPARATUS SELECTIVELY DETERMINING UNIVERSAL VOLTAGE INPUT FOR SOLID STATE LIGHT FIXTURES
- 专利标题（中）： 方法和装置选择性地确定用于固态灯具的通用电压输入
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申请号： US13509863申请日： 2010-04-13
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公开(公告)号： US20120235585A1公开(公告)日： 2012-09-20
- 发明人: Ihor Lys , Michael Datta , Gregory Campbell
- 申请人： Ihor Lys , Michael Datta , Gregory Campbell
- 申请人地址： NL Eindhoven
- 专利权人： KONINKLIJKE PHILIPS ELECTRONICS, N.V.
- 当前专利权人： KONINKLIJKE PHILIPS ELECTRONICS, N.V.
- 当前专利权人地址： NL Eindhoven
- 国际申请： PCT/IB2010/051594 WO 20100413
- 主分类号： H05B37/02
- IPC分类号： H05B37/02 ; G06F19/00
摘要：
A device for detecting a dimmer phase angle set by operation of a dimmer for a solid state lighting load includes a processor having a digital input, a first diode connected between the digital input and a voltage source and a second diode connected between the digital input and ground. The device further includes a first capacitor connected between the digital input and a detection node, a second capacitor connected between the detection node and ground, and a resistance connected between the detection node and a rectified voltage node, which receives a rectified voltage from the dimmer. The processor is configured to sample digital pulses at the digital input based on the rectified voltage and to identify the dimmer phase angle based on lengths of the sampled digital pulses.
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