A digital-to-analog conversion device
A digital-to-analog conversion and conversion circuit technology, which is applied in the direction of digital-to-analog converters, etc., can solve problems such as increased production costs, complex voltage conversion current circuit structure, and small current signal adjustment range, so as to save costs, realize programmable control, The effect of enhancing the anti-interference ability
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[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] Please refer to figure 1 as shown, figure 1 A block diagram of a digital-to-analog conversion device provided by an embodiment of the present invention.
[0024] The digital-to-analog conversion device in this embodiment includes: an isolation unit 101 , a digital-to-analog conversion unit 102 and a voltage-to-current conversion unit 103 . The voltage-current conversion unit 103 includes: a conversion circuit 1031 and a filter circuit 1032 .
[0025] The isolation unit 101 is connected to the central processing unit 104 and is used for inputting the digital signal from the central processing unit 104 into the digital-to-analog conversion unit 102 through an optocoupler.
[0026] The digital-to-analog conversion unit 102 is connected with the isola...
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