| 摘要 |
An inexpensive electric discharge light-regulation matching circuit 10 for use with a standard light regulator to regulate the light of an electric discharge without causing flickering is disclosed to include a resonance unit 11, which comprises a first capacitor C1 and a second capacitor C2 connected in series and a first inductance L1 connected in parallel to the first capacitor C1 and second capacitor C2, a converter circuit 21 connected to the resonance unit 11 for converting an alternating current into a direct current, a half-bridge output unit 31, which comprises two electrically controlled switches Q1,Q2 connected in series to the converter unit 21 with the respective control end respectively connected to a respective oscillation unit 35, and a voltage feedback unit 41, which is connected to the half-bridge output unit 31 and the converter unit 21 and comprises a second inductor L2, a third capacitor C3 and a fourth capacitor C4 that are connected in series. Further, the resonance frequency of the resonance unit 11 is about a predetermined multiple of the working frequency of the half-bridge output unit 31.
|
