| 摘要 |
An inverter circuit for supplying power to a lamp. The circuit comprises a DC voltage supply source. The circuit also comprises a transformer having a primary and a secondary winding. The secondary winding is coupled to the lamp and the primary winding is coupled to the DC supply source. The circuit also comprises a pair of inductors coupled in series to opposite ends of the primary winding. A capacitor couples the inductors together. The circuit is configured such that the pair of inductors, in conjunction with the capacitor, alternately resonate to provide an AC current supply source to the lamp. The circuit further comprises a pair of switches which alternately turn "on" and "off", thereby causing the pair of inductors to alternately resonate. A control driver is coupled to the pair of switches and is configured to alternately turn on and off the pair of switches. Advantageously, the control driver comprises a PWM control driver. Preferably, the primary winding includes a transformer tap that defines a first section and a second section, and the DC supply source is coupled to the primary winding.
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