SU712892A1 - Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit - Google Patents

Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit Download PDF

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Publication number
SU712892A1
SU712892A1 SU782621480A SU2621480A SU712892A1 SU 712892 A1 SU712892 A1 SU 712892A1 SU 782621480 A SU782621480 A SU 782621480A SU 2621480 A SU2621480 A SU 2621480A SU 712892 A1 SU712892 A1 SU 712892A1
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SU
USSR - Soviet Union
Prior art keywords
transistor
protecting
load circuit
overloads
base
Prior art date
Application number
SU782621480A
Other languages
Russian (ru)
Inventor
Юрий Иванович Драбович
Николай Николаевич Юрченко
Эдуард Васильевич Демиденко
Владимир Григорьевич Гребенюк
Original Assignee
Институт Электродинамики Ан Украинской Сср
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Priority to SU782621480A priority Critical patent/SU712892A1/en
Application granted granted Critical
Publication of SU712892A1 publication Critical patent/SU712892A1/en

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Description

через врем , равное времени зар да конденсатора 8 через резистор 7. Когда ток базы, а соответственно и ток коллектора достигает порога срабатывани  реле 11, контакты 11 замкнутс  и включат цепь управлени  силового транзисторного инвертора .after a time equal to the charging time of the capacitor 8 through the resistor 7. When the base current, and accordingly the collector current reaches the operation threshold of the relay 11, the contacts 11 close and turn on the control circuit of the power transistor inverter.

Если аварийный режим в цепи нагрузки инвертора не будет устранен, все процессы повтор тс  через интервал времени, определ емый временем зар да цепи 7, 8, 10.If the emergency mode in the load circuit of the inverter is not eliminated, all processes are repeated after a time interval determined by the charge time of the circuit 7, 8, 10.

Claims (2)

Формула изобретени Invention Formula Устройство дл  защиты транзисторного инвертора от перегрузок и коротких замыканий в цепи нагрузки, содерл ащее датчик тока, резисторы, выпр митель, транзистор, в коллекторной цепи которого включено электромагнитное реле, контакты которого включены в цепь источника питани , отличающеес  тем, что, с целью повышени  надежности, оно снабжено включенным на выходе выпр мител  дополнительным электромагнитным реле и включенным эмиттером и базой транзистора конденсатором, причем неподвижные контакты дополнительного реле соединены с полюсом источника питани  и через резистор с базой транзистора, а подвижныйA device for protecting a transistor inverter against overloads and short circuits in the load circuit, containing a current sensor, resistors, a rectifier, a transistor, in whose collector circuit an electromagnetic relay is connected, whose contacts are included in the power supply circuit, reliability, it is equipped with an additional electromagnetic relay connected to the output of the rectifier and a capacitor switched on by the emitter and base of the transistor, and the fixed contacts of the additional relay are connected to the pole power supply and through a resistor with the base of the transistor, and the mobile контакт соединен с эмиттером и базой транзистора через второй резистор и конденсатор соответственно.the contact is connected to the emitter and the base of the transistor through a second resistor and a capacitor, respectively. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination I. Патент Японии 51-36190, кл. Н 02 М 1/18, 1976.I. Japan Patent 51-36190, cl. H 02 M 1/18, 1976. 2. Агапов М. В. и др. Электрическа  защита полупроводниковых источников питани . М., «Советское радио, 1966, с. 129,2. Agapov MV and others. Electric protection of semiconductor power sources. M., “Soviet Radio, 1966, p. 129, рис. 85.rice 85.
SU782621480A 1978-06-02 1978-06-02 Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit SU712892A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782621480A SU712892A1 (en) 1978-06-02 1978-06-02 Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782621480A SU712892A1 (en) 1978-06-02 1978-06-02 Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit

Publications (1)

Publication Number Publication Date
SU712892A1 true SU712892A1 (en) 1980-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU782621480A SU712892A1 (en) 1978-06-02 1978-06-02 Arrangement for protecting transistorized inverter from overloads and short-circuitings in load circuit

Country Status (1)

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SU (1) SU712892A1 (en)

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