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- W2360872066 abstract "An over-temperature protection( OTP) circuit for projectors is proposed based on UMC 0.25 μm BiCMOS process. The temperature detection is achieved using the negative temperature-coefficient characteristic of base-emitter( BE) junction voltage. Different from the traditional OTP circuit,the thermal hysteresis of the proposed circuit is realized through the internal positive feedback of a comparator. Thus the precision of the hysteresis is improved. Simulation using HSPICE software shows that,the drifts of thermal shutdown and hysteresis thresholds are well rejected. The proposed circuit has steady and reliable performances. It can shut down the system accurately when the device is over-temperature. The protection of lamp house and liquid crystal board is achieved and the useful life of the projector is guaranteed." @default.
- W2360872066 created "2016-06-24" @default.
- W2360872066 creator A5039289264 @default.
- W2360872066 date "2014-01-01" @default.
- W2360872066 modified "2023-09-23" @default.
- W2360872066 title "Design of High-precision Over-temperature Protection Circuit for Projectors" @default.
- W2360872066 hasPublicationYear "2014" @default.
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