Patent ID: 7329996

Claim:
A sine wave light-adjusting apparatus, controlled by a microprocessor and used for adjusting a sine wave voltage for providing it to a lighting unit, comprising: an energy-storing unit, connected with the lighting unit; a positive semi-period switching unit, connected with the energy-storing unit and controlled by the microprocessor to execute a switching operation during the positive semi-period of the sine wave voltage; a negative semi-period switching unit, connected with the energy-storing unit and controlled by the microprocessor to execute the switching operation during the negative semi-period of the sine wave voltage; a positive semi-period flywheel unit, connected with the energy-storing unit and the lighting unit and controlled by the microprocessor to conduct during the positive semi-period of the sine wave voltage; and a negative semi-period flywheel unit, connected with the energy-storing unit and the lighting unit and controlled by the microprocessor to conduct during the negative semi-period of the sine wave voltage.