Reference voltage and reference current generating circuit and method
A reference current and reference voltage technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of occupying a huge chip area, consuming a lot, and unintegrated circuit design concepts, to simplify the circuit structure, The effect of reducing manufacturing cost, circuit area and power consumption
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[0015] The following embodiments relate to a reference voltage and reference current generating circuit, which mainly includes a band gap reference circuit for generating a temperature-independent reference voltage by generating a current with a positive temperature coefficient, and a voltage to current The conversion circuit is coupled to the bandgap reference circuit for converting a voltage with a negative temperature coefficient into a current with a negative temperature coefficient. In addition, both the bandgap reference circuit and the voltage-to-current conversion circuit have a shared current source, and the positive temperature coefficient current of the bandgap reference circuit and the negative temperature coefficient current of the voltage-to-current conversion circuit are converged thereon to generate and Reference current independent of temperature.
[0016] The common point of traditional circuits is that the reference voltage and the reference current are not int...
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