Temperature control device for agriculture and avocation production
一种温度控制装置、农副业的技术,应用在使用电动方式进行温度控制、带有辅助加热装置的辅助控制器等方向,能够解决损耗严重、制作成本高、控制复杂等问题,达到结构设计合理、自动化程度高、控温精确的效果
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[0018] Such as figure 1 The shown temperature control device for agricultural and sideline production includes a power supply circuit, a temperature detection and display circuit, a reference voltage circuit and a control circuit.
[0019] The power supply circuit is composed of a power switch S2, a power transformer T, rectifier diodes VD2-VD5, filter capacitors C1, C2, a three-terminal voltage stabilizing integrated circuit IC3, a resistor R6 and a power indicator light-emitting diode VL1. The input terminal is connected to a power switch S2, the output terminal of the power transformer T is connected to a rectifier bridge circuit composed of diodes VD2-VD5, and the output terminals of the rectifier bridge circuit are respectively connected to a filter capacitor C1 and a three-terminal voltage stabilizing integrated circuit The input terminal of IC3 and the output terminal of the three-terminal voltage stabilizing integrated circuit IC3 are connected in parallel with a filte...
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