Lighting apparatus for projector
First Claim
1. A lighting apparatus for a projector, comprising:
- a control module, used for generating a lighting signal;
a lamp driver, connected to said control module and used for receiving said lighting signal and controlling a lamp according to said lighting signal, said lamp driver generating a high transient voltage to said control module when said lamp lightens; and
a transient voltage suppression circuit, disposed between said control module and said lamp driver, used for transmitting said lighting signal to said lamp driver, and attenuating said high transient voltage and then outputting said attenuated high transient voltage to said control module.
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Accused Products
Abstract
A lighting apparatus for a projector comprises a control module, a lamp driver and a transient voltage suppression circuit, in which the control module is used for generating a lighting signal, the lamp driver is used for receiving the lighting signal and controlling a lamp according to the lighting signal, and the transient voltage suppression circuit is disposed between the control module and the lamp driver, used for transmitting said lighting signal to the lamp driver and attenuating a high transient voltage generated at the instant the lamp driver lights up the lamp. The present invention is used to lower the high transient voltage through the transient voltage suppression circuit. Whereby, the control module is protected and the stability of the projector is further enhanced.
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Citations
10 Claims
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1. A lighting apparatus for a projector, comprising:
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a control module, used for generating a lighting signal; a lamp driver, connected to said control module and used for receiving said lighting signal and controlling a lamp according to said lighting signal, said lamp driver generating a high transient voltage to said control module when said lamp lightens; and a transient voltage suppression circuit, disposed between said control module and said lamp driver, used for transmitting said lighting signal to said lamp driver, and attenuating said high transient voltage and then outputting said attenuated high transient voltage to said control module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification