SU845191A1 - Device for switching-on relay at lowered supply voltages - Google Patents
Device for switching-on relay at lowered supply voltages Download PDFInfo
- Publication number
- SU845191A1 SU845191A1 SU782615529A SU2615529A SU845191A1 SU 845191 A1 SU845191 A1 SU 845191A1 SU 782615529 A SU782615529 A SU 782615529A SU 2615529 A SU2615529 A SU 2615529A SU 845191 A1 SU845191 A1 SU 845191A1
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- SU
- USSR - Soviet Union
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- resistor
- relay
- base
- output
- transistor
- Prior art date
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Description
1one
Изобретение относитс к устройствам коммутации.This invention relates to switching devices.
Известно устройство дл включени реле при пониженных напр жени х питани , содержаи ,се дополнительное реле и электролитический конденсатор 1. Недостатком этого устройства вл етс пониженна надежность .A device for switching a relay at low supply voltages is known, which contains an additional relay and an electrolytic capacitor 1. The disadvantage of this device is reduced reliability.
Известно также устройство дл включени реле при пониженных напр жени х пи-тани , в котором первый вывод обмотки реле подключен к токозадающему резистору, а второй через ключ подсоединен к шине питани , содержащее транзистор, эмиттер которого подсоединен к общей шине, база - через первый резистор - со вторым выводом обмотки реле, коллектор - через второй резистор - с шиной питани , причем между базой и эмиттером включен третий резистор и форсирующий конденсатор, подключенный между коллектором транзистора и первым выводом обмотки реле 2. Недостатком этого устройства вл ютс большие весогабаритные показатели из-за необходимости использовани непол рного конденсатора, пониженный кпд и большое врем восстановлени .It is also known a device for switching on relays at low power voltages, in which the first terminal of the relay coil is connected to a current-supplying resistor, and the second is connected via a switch to the power bus, which contains a transistor whose emitter is connected to the common bus, the base is through the first resistor - with the second output of the relay coil, the collector - through the second resistor - with the power bus, the third resistor and the boosting capacitor connected between the collector of the transistor and the first output coil of the relay 2 being connected between the base and the emitter. The benefits of this device are large weight and size indicators due to the need to use a non-polar capacitor, reduced efficiency and long recovery time.
Цель изобретени - улучшение электрических и весогабаритных характеристик.The purpose of the invention is to improve the electrical and weight and size characteristics.
Эта цель достигаетс тем, что устройство снабжено RC-цепью и дополнительным транзистором , коллектор которого соединен с базой основного транзистора, эмиттер - с общей шиной, а база соединена с токозадающим резистором и со средней точкой RC-цепи , резистор которой подключен ко второму выводу обмотки реле, а конденсатор - к общей шине питани , причем форсирующий конденсатор выполнен электролитическим.This goal is achieved by the fact that the device is equipped with an RC circuit and an additional transistor, the collector of which is connected to the base of the main transistor, the emitter is connected to the common bus, and the base is connected to the current supply resistor and to the midpoint of the RC circuit whose resistor is connected to the second winding terminal relay, and the capacitor - to the common power bus, and the forcing capacitor is electrolytic.
На чертеже представлена схема устройства , которое состоит из реле I, обмотка которого подключена к токозадающему резистору 2, а второй вывод обмотки через ключ 3 - к положительной щине питани , основного транзистора 4, эмиттер которого соединен с общей щиной питани (отрицательной), база - через первый резистор 5 со вторым выводом обмотки реле 1, коллектор через второй резистор 6 - с положительной щиной питани , причем между базой и эмиттером включен третий резистор 7,The drawing shows a diagram of a device that consists of a relay I, the winding of which is connected to the current-setting resistor 2, and the second winding terminal through the key 3 to the positive power supply bus, the main transistor 4, the emitter of which is connected to the total power supply (negative), through the first resistor 5 with the second output winding of the relay 1, the collector through the second resistor 6 with a positive power supply, and the third resistor 7 is connected between the base and the emitter,
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782615529A SU845191A1 (en) | 1978-05-16 | 1978-05-16 | Device for switching-on relay at lowered supply voltages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782615529A SU845191A1 (en) | 1978-05-16 | 1978-05-16 | Device for switching-on relay at lowered supply voltages |
Publications (1)
Publication Number | Publication Date |
---|---|
SU845191A1 true SU845191A1 (en) | 1981-07-07 |
Family
ID=20764552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782615529A SU845191A1 (en) | 1978-05-16 | 1978-05-16 | Device for switching-on relay at lowered supply voltages |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU845191A1 (en) |
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1978
- 1978-05-16 SU SU782615529A patent/SU845191A1/en active
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