El lamp driver circuits

The IMP is an Electroluminescent (EL) lamp driver with the four EL lamp driving functions on-chip. These are the switch-mode power supply, its high-frequency oscillator, the high-volt-age H-bridge lamp driver and its low-frequency oscillator. The IMP drives EL lamps of up to 50nF capacitance to high bright-ness; EL lamps with capacitances greater than 50nF can be driven, but will be lower in light . The MAX is a high-voltage DC-AC converter ideal for driving two electroluminescent (EL) lamps. The MAX features a +V to +V input range that allows the device to accept a wide variety of voltage sources, including single-cell lithium-ion (Li+) batteries. The lamp outputs of the device generate up to V P-P for maximum lamp brightness. HV EL Lamp Driver Circuits for Low Audible Noise or High Brightness Applications This Application Note is used to describe the patented method to reduce the audible noise generated by the EL (Electroluminescent) lamp used in mobile phone applications. This Application Note also provides example circuits as a.

HV EL Lamp Driver Circuits for Low Audible Noise or High Brightness Applications This Application Note is used to describe the patented method to reduce the audible noise generated by the EL (Electroluminescent) lamp used in mobile phone applications. This Application Note also provides example circuits as a. Supertex EL drivers) and AN-H43 (This Application Note describes the method to reduce the audible noise generated by the EL lamp for Mobile Phone applications). When constructing and testing one of the driver circuits listed below, keep in mind that results may differ from those given due to lamp characteristics and also component tolerance. The inverting circuitry is inside the box part to the left. This pocket inverter can drive approximately 1 to 15 feet ( meter) of 'classic' EL wire such as LyTec. Since we are using higher-brightness EL wire in the shop, it can only drive half as much, 1 to feet ( to meter). We found that 2 meters gives a nice bright glow at good voltage and frequency.

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