Invention Application
US20020070684A1 Optimal FM for HF operation of high intensity discharge (HID) lamps
失效
用于高强度放电（HID）灯的HF操作的最佳FM
- Patent Title: Optimal FM for HF operation of high intensity discharge (HID) lamps
- Patent Title (中): 用于高强度放电（HID）灯的HF操作的最佳FM
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Application No.: US09732584Application Date: 2000-12-08
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Publication No.: US20020070684A1Publication Date: 2002-06-13
- Inventor: Gert W. Bruning
- Applicant: PHILIPS ELECTRONICS NORTH AMERICA CORPORATION
- Applicant Address: null
- Assignee: PHILIPS ELECTRONICS NORTH AMERICA CORPORATION
- Current Assignee: PHILIPS ELECTRONICS NORTH AMERICA CORPORATION
- Current Assignee Address: null
- Main IPC: H05B037/02
- IPC: H05B037/02
Abstract:
A low cost method for operating a high intensity discharge (HID) lamp including a ballast circuit. The method includes generating DC in an AC-to-DC converter, capturing any AC ripple of the DC with a buffer capacitor to generate a control signal, generating a high frequency lamp power signal from DC utilizing an HF inverter circuit and modulating the high frequency power signal utilizing the control signal to generate a frequency swept lamp power signal to drive the lamp while avoiding acoustic resonance.
Public/Granted literature
- US06483252B2 Optimal FM for HF operation of high intensity discharge (HID) lamps Public/Granted day:2002-11-19
Information query
