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恒流和恒压电路是众所周知的。本文给出恒瓦数电路(见图1)。此电路依赖于负载和感测器电压之间的倒数关系。编程电阻器确定所供给的瓦特数。本设计围绕1V考虑。假定负载是100Ω而所希望的恒瓦数是0.01W。调整器关系是1/N×N=1V，即基准电压是1V。在Y的输入电压用N表示。最后所
Constant current and constant voltage circuits are well known. This article gives a constant wattage circuit (see Figure 1). This circuit depends on the reciprocal relationship between the load and the voltage of the sensor. The programming resistor determines the number of watts supplied. The design around 1V considerations. Assume the load is 100Ω and the desired wattage is 0.01W. The regulator relationship is 1 / N × N = 1V, that is, the reference voltage is 1V. The input voltage at Y is denoted by N. Last place