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夏普29ADlF彩电开关电源采用以TDAl6846和大功率场效应管组成的并联型开关电源,副电源取自主电源的9.4 V电压,三端稳压器后获得5 V电压,待机控制采用降低主电源输出电压和切断小信号电路低压电源的方式,受微处理器IX0104SE的37脚控制。夏普29ADlF彩电在开关电源的初级设置了初级过压、欠压保护和次级过压、过流保护,在微处理器控制系统,围绕30脚保护专用引脚,设置了电源失压保护,行输出过压、失压保护、场脉冲异常保护电路。开关
Sharp 29ADlF color TV switching power supply with TDAl6846 and high-power FET composed of parallel switching power supply, secondary power taken from the main power of the 9.4 V voltage, three-terminal regulator to obtain 5 V voltage, standby control to reduce the main power supply output voltage And cut off the small signal circuit low-voltage power supply, controlled by the microprocessor 37 feet of IX0104SE. Sharp 29ADlF color TV in the primary set of switching power supply primary overvoltage, undervoltage protection and secondary overvoltage, overcurrent protection, in the microprocessor control system, around the 30-pin protection dedicated pin, set the power supply voltage protection, the line Output overvoltage, loss of pressure protection, field pulse abnormal protection circuit. switch