SU739742A1

SU739742A1 - Ac power rectifier switch

Info

Publication number: SU739742A1
Application number: SU782570506A
Authority: SU
Inventors: Владимир Яковлевич Лукьянов; Игорь Федорович Антонов
Original assignee: Уфимский моторостроительный завод
Priority date: 1978-01-19
Filing date: 1978-01-19
Publication date: 1980-06-05

Description

(54) СИЛОВОЙ ВЕНТИЛЬНЫЙ КЛЮЧ ПЕРЕМЕННОГО(54) POWER VENT VARIABLE KEY

1one

Изобретение относитс к импульсной технике может быть использовано в схемах элек тронного зажигани двигателей внутреннего сгорани .The invention relates to a pulsed technique that can be used in electronic ignition circuits of internal combustion engines.

Известен силовой вентильный ключ переменного тока, содержащий тиристоры, нагрузку, коммутирующий конденсатор и резисторы Щ.Known power valve key AC, containing thyristors, load, switching capacitor and resistors Sch.

Этот ключ малонадежен.This key is unreliable.

Наиболее близким к данному изобретению техническим решением вл етс силовой вентильный ключ переменного .тока, содержащий блок управлени , основной симметричный тиристор , в анодную цепь которого включена на- грузка,- коммутирующий конденсатор, последовательно соединенные резисторы и разр дный симметричный тиристор 2.The closest technical solution to this invention is an AC-current power switch valve containing a control unit, the main symmetric thyristor, the anode circuit of which includes a load, a switching capacitor, series-connected resistors and a discharge symmetric thyristor 2.

Однако этот ключ обладает узкими функциональными возможност ми и сравнительно невысокой надежностью.However, this key has narrow functionality and relatively low reliability.

Цель изобретени - расширение функциональных возможностей ключа и повышение его надежности.The purpose of the invention is to enhance the functionality of the key and increase its reliability.

Дл этого в силовой вентильный ключ, переменного тока, содержащий блок управлени , уFor this purpose, in the power valve wrench, an alternating current containing a control unit,

ТОКАCURRENT

ОСНОВНОЙ симметричный тиристор, в анодную цепь которого включена нагрузка, коммутирующий конденсатор, последовательно соединенные резисторы и разр дной симметричный тиристор, введены два противофазных источника , диоды, накопительные конденсаторы и коммутируюцще тиристоры, причем противофазные источники соединены через диоды с накогштельными конденсаторами, точка соединени которых подключена к общей точке источ10 ников и к катоду основного симметричного таристора, точка соединени катода, диода и накопительного конденсатора первого источника подключена к аноду первого ко.ммутирующего тиристора, точка соединени анода дио15 да и конденсатора второго источника подключена к катоду второго коммутирующего тиристора , а точка соединени катода и анода Коммутирующих тиристоров через коммутирующий конденсатор подключена к аноду основ20 ного симметричного тиристора.A BASIC symmetrical thyristor, in the anodic circuit of which a load is switched, a switching capacitor, series-connected resistors and a discharge symmetric thyristor, two antiphase sources are introduced, diodes, storage capacitors and switching thyristors, and the antiphase sources are connected via diodes with cotton capacitors, the connection point of which is connected to the common point of sources and to the cathode of the main symmetric taristor, the point of connection of the cathode, diode and storage capacitor ne Vågå source connected to the anode of the first thyristor ko.mmutiruyuschego, point compound dio15 anode and the second source capacitor connected to the cathode of the second switching thyristor and the point of the compound cathode and anode commuting thyristors via the switching capacitor is connected to the anode of the thyristor osnov20 Nogo symmetrical.

Claims

The drawing is a schematic of the electrical key diagram. 3 The key contains the control unit 1, the main symmetrical thyristor 2, the lagro: zhu 3, the switching capacitor 4, the series-connected resistor 5 and the discharge symmetric thyristor 6. The key contains two antiphase indicators on the transformer 7 and diodes 8, 9 storage capacitors 10, 11 and switching thyristors 12, 13. The AC power switch valve operates as follows. When a control pulse arrives at the thyristor control electrode, it opens with a positive or negative half-cycle of the mains voltage and remains in the on state until the supply of control pulses to the switching thyristors 12, 13. The capacitors 10 and 11 are in the initial state charged from secondary windings 14, 15 through diodes 8 and 9 to the amplitude value of the voltage of these windings. The charging current of the switching conductor 4 is greater than or equal to the load current 3 and directed opposite to the current flowing through the thyristor 2. At the same time, the main symmetrical thyristor 2 is turned off (provided that the charge current flow time of the thyristor 2 and the amplitude of the charge current is greater than the load current 3). When forming the command, the thyristor 13 is turned on in the negative half-cycle of the load current by 3 pulses from the control unit 1. The switching capacitor 4 is charged by the current of the storage capacitor 11.,. After the thyristor 2 and commuting thyristors or 13 are closed, a pulse is applied to the discharge symmetric thyristor 6, the commutating coids1n, then 4 1G (1lk; 1is1c to the serial circuit ich pe.wciopa 5 and p.1 .d. Claims of an alternating current power switch, containing a control unit, a main symmetrical thyristor, in the anode circuit of which a load is included, a switching capacitor, series-connected resistors and a discharge symmetry thyristor, which has the same that for the purpose of races functionality and reliability, two antiphase sources, diodes, storage capacitors and switching thyristors are introduced into it, and antiphase sources are connected via diodes to storage capacitors, the connection point of which is connected to the common point of the sources and to the cathode of the main symmetric thyristor the connection of the cathode of the diode and the storage capacitor of the first source is connected to the anode of the first switching thyristor, the junction point, or the anode of the diode and condensate torus second source is connected to the cathode of the second switching thyristor and the point of the cathode and the anolyte compound commuting thyristors via the switching capacitor is connected to the anode osnovnoiX) symmetrical thyristor. Sources of information, taken into account during the examination 1. USSR author's certificate number 481134, class, H 03 K 17/56, 1973.

2. USSR author's certificate number 390669, kp. H 03 K 17/56, -1970 (prototype).