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Reference voltage generator with dual - slope temperature characteristic for a voltage regulator of a force vehicle change in current generator
Reference voltage generator with dual - slope temperature characteristic for a voltage regulator of a force vehicle change in current generator
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机译:具有双斜率温度特性的参考电压发生器,用于电流发生器的机动车辆调压器
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摘要
A reference voltage generator having a dual slope temperature characteristic, for use in an automotive alternator voltage regulator, comprises a bandgap circuit (R1,R2,R3,R4) which generates a voltage (A) having a thermal drift coefficient of zero and a voltage (B) having a non-zero thermal drift coefficient. These voltages are applied to a voltage divider (R5,R6) and a voltage-follower type of circuit (OPA1). A unidirectional conduction amplifier circuit (OPA2) has an input terminal connected to an intermediate point (C) on the voltage divider. A second voltage divider (R7,R8) is connected between the output terminals of the voltage-follower circuit (D) and the amplifier circuit (E). An intermediate node (F) of the second voltage divider is coupled to an output terminal (VREF) of the generator. IMAGE
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