Patent ID: 6583569
Filing Date: 2003-06-24
Classification: B60K,B60Q

Abstract:
A device for automatically switching color of luminescent dashboard, comprising:a driving power source; a commutating circuit connected to an output of said driving power source and generally composed of a current, limiter, an oscillating circuit, and a transformer for providing stable driving power output; a voltage control circuit having an input connected to said driving power source and generally composed of a voltage controller, a digital controller, a voltage attenuator, and a frequency controller; said voltage control circuit having an output connected to said commutating circuit with said frequency controller connected to said transformer of said commutating circuit, so as to provide different voltages and frequencies for actuating cold light of different colors; a luminescent device connected to an output of said commutating circuit to generate cold light of different colors in response to variable voltages and variable frequencies provided by said commutating circuit; and a display device connected to an output of said frequency controller for displaying numerals on meters mounted on said luminescent dashboard.