Band-gap reference circuit with high-order temperature compensation
A high-order temperature compensation and reference circuit technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., to achieve good effects of improving temperature coefficient and temperature characteristics
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[0019] Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is described in detail as follows:
[0020] A high-order temperature-compensated bandgap reference circuit includes a high-order bandgap reference circuit and a voltage adjustment circuit; the high-order bandgap reference circuit is used to generate a bandgap voltage with high-order temperature compensation, and the voltage adjustment circuit Negative feedback regulation can make the reference output voltage more stable. Compared with the traditional bandgap reference circuit, this circuit is characterized by adding a non-linear temperature compensation and voltage adjustment circuit, and controls the turn-on and turn-off of the entire circuit module through two enable control signals UVLO and UVP. Linear includes exponential curvature compensation and second order compensation. Such as figure 2 The right part is a bandgap reference structure. Compared with the tra...
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