RU2014118204A

RU2014118204A - SOURCE OF REFERENCE VOLTAGE BASED ON A DIFFERENTIAL PAIR OF FIELD TRANSISTORS WITH A CONTROLLING PN TRANSITION

Info

Publication number: RU2014118204A
Application number: RU2014118204/08A
Authority: RU
Inventors: Евгений Иванович Старченко; Иван Васильевич Барилов; Олег Владимирович Дворников
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2015-11-10

Abstract

Источник опорного напряжения на основе дифференциальной пары полевых транзисторов с управляющим pn-переходом, содержащий первый и второй полевые транзисторы с управляющим pn-переходом, истоки которых объединены, первый, второй и третий резисторы, биполярный транзистор, отличающийся тем, что в устройство введены повторитель тока и регулирующий элемент, причем вход повторителя тока соединен со стоком первого полевого транзистора, выход повторителя тока соединен со стоком второго полевого транзистора, питающий вход повторителя тока соединен с шиной отрицательного питающего напряжения, управляющий вход регулирующего элемента подключен к стоку второго полевого транзистора, выход регулирующего элемента подключен к эмиттеру биполярного транзистора, являющегося выходом устройства, вход питания регулирующего элемента соединен с шиной отрицательного питающего напряжения, база и коллектор биполярного транзистора объединены и подключены к первому выводу первого резистора, второй вывод которого подключен к точке соединения затвора первого полевого транзистора и первым выводом второго резистора, второй вывод второго резистора подключен к общей шине, третий резистор включен между общей шиной и истоком первого полевого транзистора, а затвор второго полевого транзистора соединен с общей шиной.A voltage reference source based on a differential pair of field-effect transistors with a control pn junction, containing the first and second field-effect transistors with a control pn junction, the sources of which are combined, the first, second and third resistors, a bipolar transistor, characterized in that a current follower is introduced into the device and a regulating element, wherein the input of the current follower is connected to the drain of the first field effect transistor, the output of the current follower is connected to the drain of the second field effect transistor, supplying the input of the current follower connected to the negative power supply bus, the control input of the control element is connected to the drain of the second field-effect transistor, the output of the control element is connected to the emitter of the bipolar transistor, which is the device output, the power input of the control element is connected to the negative power supply bus, the base and collector of the bipolar transistor are combined and connected to the first terminal of the first resistor, the second terminal of which is connected to the gate connection point of the first field-effect transistor and the first terminal the second resistor, the second output of the second resistor is connected to a common bus, the third resistor is connected between the common bus and the source of the first field-effect transistor, and the gate of the second field-effect transistor is connected to the common bus.

Claims

A voltage reference source based on a differential pair of field-effect transistors with a control pn junction, containing the first and second field-effect transistors with a control pn junction, the sources of which are combined, the first, second and third resistors, a bipolar transistor, characterized in that a current follower is introduced into the device and a regulating element, wherein the input of the current follower is connected to the drain of the first field effect transistor, the output of the current follower is connected to the drain of the second field effect transistor, supplying the input of the current follower connected to the negative power supply bus, the control input of the control element is connected to the drain of the second field-effect transistor, the output of the control element is connected to the emitter of the bipolar transistor, which is the device output, the power input of the control element is connected to the negative power supply bus, the base and collector of the bipolar transistor are combined and connected to the first terminal of the first resistor, the second terminal of which is connected to the gate connection point of the first field-effect transistor and the first terminal the second resistor, the second output of the second resistor is connected to a common bus, the third resistor is connected between the common bus and the source of the first field-effect transistor, and the gate of the second field-effect transistor is connected to the common bus.