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发明公开
CN107656560A 一种水温控制电路 无效 - 驳回

一种水温控制电路
摘要：
本发明为一种水温控制电路，包括单稳态模块及分压模块，分压模块中热敏电阻器检测到温度低于预设值，集成电路控制单稳态电路的电压为低电压，使单稳态电路处于暂稳态，加热器通电工作，同时报警回路的电压为高电平，报警回路工作；分压模块中热敏电阻器检测到温度到达预设值，集成电路控制单稳态电路的电压为高电压，使单稳态电路处于稳定状态，加热器回路中继电器断开，加热器不工作，同时报警回路的电压为低电平，报警回路不工作。该水温控制电路可对鱼缸内水温变化及时作出反馈的鱼缸水温控制系统，并实时地依据水温数据作出是否加热或停止加热。
摘要（英）：

The invention relates to a water temperature control circuit which includes a monostable module and a voltage division module. When a thermistor in the voltage division module detects that the temperature is below a preset value, an integrated circuit controls the monostable circuit at a low voltage to make the monostable circuit in a transient stable state, a heater is powered on to work, the voltage of an alarm circuit is at a high level, and the alarm circuit works. When the thermistor in the voltage division module detects that the temperature reaches the preset value, the integrated circuit controls the monostable circuit at a high voltage to make the monostable circuit in a stable state, a relay in the circuit of the heater is opened, the heater does not work, the voltage of the alarm circuit is at a low level, and the alarm circuit does not work. The water temperature control circuit can give feedback in time on the change of water temperature in a fish tank, and decide whetheror heat or stop heating in real time according to water temperature data.

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