Invention Grant
- Patent Title: Electronic ballast with higher startup voltage
- Patent Title (中): 电子镇流器具有较高的启动电压
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Application No.: US11720844Application Date: 2005-12-08
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Publication No.: US07868559B2Publication Date: 2011-01-11
- Inventor: Ramakrishnan Venkatraman , Romel Panlilio
- Applicant: Ramakrishnan Venkatraman , Romel Panlilio
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- International Application: PCT/IB2005/054138 WO 20051208
- International Announcement: WO2006/061800 WO 20060615
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the switching control signal (50); and a startup adjustor operably connected to the DC controller (44) to adjust at least one of the sensed DC bus voltage signal and the reference DC bus voltage signal for a predetermined time at startup so that startup DC bus voltage is greater than steady state DC bus voltage.
Public/Granted literature
- US20090224696A1 ELECTRONIC BALLAST WITH HIGHER STARTUP VOLTAGE Public/Granted day:2009-09-10
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