Patent ID: 6160355
Filing Date: 2000-12-12
Classification: H05B,Y02B

Abstract:
A lamp control circuit for use in a flashlight, the flashlight including at least one battery for use as a power supply, a light bulb, and a light emitting diode (LED), the lamp control circuit comprising:oscillator means coupled to the light bulb and the LED;voltage indicator means coupled to the battery for indicating to a user when the voltage level of the battery falls below a first pre-determined level;dimmer means comprising a 2 to 1 multiplexer coupled to voltage regulator means coupled between the battery and a bulb for reducing the amount of electrical current supplied to the light bulb; andactivation means coupled between said voltage indicator means and the LED, wherein said activation means supplies electrical power to the LED when a voltage level of the battery has fallen below a second pre-determined level.