Electromagnetic water meter circuit with high efficiency and small interference
A high-efficiency, excitation circuit technology, applied in the fields of electromagnetic water meter and electromagnetic flowmeter flow measurement, power supply circuit design, and excitation circuit design, can solve the problems of large power consumption of the whole machine, large signal influence, low excitation efficiency, etc., and achieve excitation High efficiency, low excitation voltage, and reduced self-consumption
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[0043] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments, and the scope of protection of the present invention will not be limited to the following statements.
[0044] In this patent, some parameters are introduced in order to explain the problem, such as voltage value, current value, etc. These introductions are only for the convenience of explaining the problem. The parameters such as caliber and turndown ratio have been adjusted, but as long as the circuit or similar structure of this patent is used, it should also be protected by this patent.
[0045] Such as figure 1 , figure 2 , an electromagnetic water meter circuit with high efficiency and low interference is composed of high-efficiency excitation circuit A of flow control voltage source, power supply circuit B without negative power supply, amplification and processing circuit C of isolated polarization voltage, AD conversion circuit ...
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