A low-power-consumption radar constant current source
A technology of constant current source and low power consumption, which is applied in the field of low power consumption radar constant current source, which can solve problems such as affecting lighting functions and flickering lights, and achieve low power consumption, improved stability, and strong load capacity.
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[0017] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the description.
[0018] The present invention provides a low-power radar constant current source, which is composed of figure 1 Known, including:
[0019] Reference source, output reference current I ref ;
[0020] A conditioning circuit; it includes a first resistor R1, a second resistor R2, a third resistor R3, and a first capacitor C1; the second resistor R2 is connected in series with the first capacitor C1 and then connected in parallel with the first resistor R1, and the first end of the parallel connection is connected to The output terminal of the reference source, the second terminal connected in parallel is grounded through the third resistor R3;
[0021] An operational amplifier circuit, which includes a first operational amplifier AMP1, a second operational amplifier AMP2, a tr...
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