Brushless Motor Air Conditioning System Outdoor Motor Control Circuit
A control circuit and air-conditioning system technology, applied in the direction of electronic reversing motor control, single motor speed/torque control, control system, etc. Problems such as waste of electric energy, to achieve the effects of enhanced applicability and composability, shortened product development cycle, and good heating effect
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[0033] see Figure 9 , the outdoor motor control circuit of the brushless motor air-conditioning system, including the microcontroller U4, the outdoor DC fan motor speed control circuit, the outdoor DC motor fixed speed and adjustable speed switching circuit, the outdoor motor speed regulation voltage cut-off circuit and the temperature detection circuit; The outdoor DC fan motor speed control circuit and temperature detection circuit are connected to the microcontroller; the outdoor motor speed regulation voltage cut-off circuit and the outdoor DC motor fixed speed and adjustable speed switching circuit are connected to the outdoor DC fan The motor speed control circuit is connected;
[0034] The outdoor DC fan motor speed control circuit includes a first circuit unit and a second circuit unit, the first circuit unit includes a connector CN2, and the second circuit unit includes a connector CN4; the first circuit unit It is connected with the second circuit unit through a co...
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