Uc3842芯片通过外部的RC电路来产生固定频率的信号。Uc3842的

Uc3842芯片通过外部的RC电路来产生固定频率的信号。Uc3842的工作频率最高可达500KHz。在芯片的8号引脚和4号引脚中间接Rt，在4号引脚与地之间接Ct。在UC3842正常工作情况下，8号引脚会输出一个5.1V的基准电压，该电压通过震荡电阻Rt向电容Ct充电。当Rt大于5K时，死区时间会随着电容的增大而增大。而对于产生的控制信号，频率与电容Ct和电阻Rt之间的关系通常由如下关系式来确定：

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结果 (英语) 1: [复制]

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The Uc3842 chip generates a fixed frequency signal through an external RC circuit. The operating frequency of Uc3842 can be up to 500KHz. Connect Rt between pin 8 and pin 4 of the chip, and connect Ct between pin 4 and ground. Under the normal working condition of UC3842, pin 8 will output a reference voltage of 5.1V, which charges the capacitor Ct through the oscillating resistor Rt. When Rt is greater than 5K, the dead time will increase with the increase of capacitance. For the generated control signal, the relationship between frequency and capacitance Ct and resistance Rt is usually determined by the following relationship:

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结果 (英语) 2:[复制]

复制成功！

The UC3842 chip generates a fixed frequency signal through an external RC circuit. The operating frequency of UC3842 can reach up to 500KHz. Connect RT between pin 8 and pin 4 of the chip, and connect CT between pin 4 and the ground. Under the normal operation of UC3842, pin 8 will output a 5.1V reference voltage, which charges the capacitor CT through the oscillation resistance RT. When RT is greater than 5K, the dead time will increase with the increase of capacitance. For the generated control signal, the relationship between frequency and capacitance CT and resistance Rt is usually determined by the following relationship:

正在翻译中..

结果 (英语) 3:[复制]

复制成功！

Uc3842 chip generates fixed frequency signal through external RC circuit. The working frequency of Uc3842 can be up to 500KHz. Indirect Rt in pin 8 and pin 4 of the chip, and Ct between pin 4 and ground. Under the normal working condition of UC3842, pin 8 will output a reference voltage of 5.1V, which will charge the capacitor Ct through the oscillating resistor RT. When Rt is greater than 5K, the dead time will increase with the increase of capacitance. For the generated control signal, the relationship between frequency and capacitance Ct and resistance Rt is usually determined by the following relationship:

正在翻译中..

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