论文部分内容阅读
2)光电耦合器隔离控制式:光电耦合器是一种以光为媒介传输电信号的控制器件,它由发光二极管(光源输入电路)和光敏三极管(光电流输出电路)组合而成。由于其输入电路与输出电路之间是彼此隔离,所以又称作为隔离控制器件,在彩电电源冷与热地隔离控制中被得到广泛应用。光电耦合器隔离控制过程是由微处理器的电源控制端输出开/关控制电平→接口驱动电路→控制光电耦合器内发光二极管与光敏三极管导通或截止→控制开关电源内部电路工作或停止。采用这种控制方式的遥控彩电机种很多,例如北京牌8320型机,牡丹牌54C10A型机,长虹牌C2188PV/C2588PV型机、熊猫牌C54P3型机等。现以
2) Optocoupler isolation control: Optocoupler is a light-mediated transmission of electrical signals control device, which consists of light-emitting diode (light source input circuit) and the phototransistor (photocurrent output circuit) combination. Because of its input circuit and the output circuit is isolated from each other, it is also known as the isolation control device, cold and warm in the color TV power supply isolation control has been widely used. Optocoupler isolation control process is controlled by the microprocessor power supply output on / off control level → interface driver circuit → control optocouplers light-emitting diodes and phototransistors turn on or off → control switching power supply internal circuit to work or stop . There are many remote control color televisions adopting this control method, such as Beijing 8320, Peony 54C10A, Changhong C2188PV / C2588PV, and Panda C54P3. Now