SU839054A1

SU839054A1 - Timer

Info

Publication number: SU839054A1
Application number: SU792820031A
Authority: SU
Inventors: Борис Иванович Стрельников; Виктория Васильевна Пискунова
Original assignee: Предприятие П/Я Г-4213
Priority date: 1979-09-21
Filing date: 1979-09-21
Publication date: 1981-06-15

Description

1one

Изобретение относитс к электронике и может, быть использовано в различных системах автоматического оборудовани .The invention relates to electronics and can be used in various systems of automatic equipment.

Известны реле времени, содержащие , врем задающую RC-цепь, пороговый каскад ,.Known time relay, containing, time specifies the RC circuit, the threshold stage,.

Однако эти реле имеют недостаточную выдержку времени.However, these relays have insufficient time delay.

Известны также реле времени,содержащие два пороговых каскада, врем задающую RC-цепь, пусковую цепь 2 Однако и данное реле имеет недостаточную выдержку времени.Also known are time relays containing two threshold stages, the time setting the RC circuit, the starting circuit 2 However, this relay also has an insufficient time delay.

Цель изобретени - увеличение вы-держки времени.The purpose of the invention is an increase in time lag.

Указанна цель достигаетс тем, что в реле времени, содержащем два пороговых каскада, выполненные на транзисторах с рабочими обмотками электромагнитных пол ризованных реле в коллекторных цеп х, динисторами в эмиттернь1х цеп х и врем задающими резисторами в базовых цеп х, врем задающий конденсатор и пусковую цепь, выполненную в виде конденсатора , подключенного к отбойным обмоткам электромагнитных пол ризованных реле, врем задающий конденсатор включен между входами пороговых каскадов , в первом из которых рабоча обмотка электромагнитного пол ризованного реле подключена к коллектору транзистора через размыкаю1цие контакты электромагнитного пол ризованного реле второго порогового каскада, а в цепь питани пороговых каскадов включены замыкающие контакты электромагнитного пол ризованного реле первого , порогового каскада.This goal is achieved by the fact that in a time relay containing two threshold stages made on transistors with working windings of electromagnetic polarized relays in collector circuits, dynistors in emitter circuits and time defining resistors in the base circuits, the time setting capacitor and the starting circuit , made in the form of a capacitor connected to the baffle windings of electromagnetic polarized relays, the time specifying the capacitor is connected between the inputs of the threshold stages, in the first of which the working winding of the electroma A rotary polarized relay is connected to the collector of the transistor through the opening of the contacts of the electromagnetic polarized relay of the second threshold stage, and the closing contacts of the electromagnetic polarized relay of the first, threshold stage are included in the power supply circuit of the threshold stages.

На чертеже представлена принципиальна электрическа схема реле времени .The drawing shows a circuit diagram of a time relay.

Claims

The relay contains two threshold stages 1 and 2 performed on transistors 3 and 4 with working windings of electromagnetic polarized relays 5 and 6 in collector circuits, in dynodors 7 and 8 in emitter circuits and in time with driving resistors 9 and 10 in the base circuits. In the threshold cascade 1 between the collector 3 of the transistor and the working winding of the electromagnetic polarized relay 5, the disconnecting contacts P and 12 of the electromagnetic polarized relay are 6 of the threshold cascade 2. The time specifying the capacitor 13 is turned on between the inputs of the threshold cascades 1 and 2. a capacitor 14 connected to the baffle windings 15 and 16 of the electromagnetic polarized relays. The power supply circuit of the threshold stages 1 and 2 includes the opening contacts 17 and 18 of the electromagnetic polarized relay 5 of the threshold stage 1. The time relay operates as follows. When the power supply is supplied to the start-up circuit from the charging current of the capacitor 14, the fender windings 15 and 16 of the polarized relays operate, causing contacts 17 and 18 to close and contacts 11 and 12 to open. This energizes the threshold stages 1 and 2. Due to asymmetry the transistor 3 opens, and the transistor 4 closes, the diristor 7 goes to the conducting state, the distor 8 is in the non-conducting state. The capacitor 13 is charged through the dynistor 7, the emitter base transition of the transistor 3 and the resistor 10 until the switching voltage of the distor 8. Then the transistor 4 opens the distor 8 switches to conducting state, the electromagnetic polarized relay 6 is activated and closes the contacts P and 12 in the threshold stage 1, the transistor 3 is closed, the dynist 7 goes to the non-conducting state. The recharge of the capacitor 13 through the distor 8, the emitter base of the transistor 4 and the resistor 9 begins to switch to the switching voltage of the dynistor 7. After that Side 3 is opened Shockley diode 7 is switched to conductive state, triggered polarized electromagnetic relay 5 and opens the contacts 17 and 18. In this case, power is removed from the threshold stages 1 and 2 and the device goes into the initial state. Thus, the charge of the capacitor before the reverse polarity voltage increases the efficiency of use of the capacitance capacitance and significantly increases the time delay. Claims of the invention Repea time, containing two threshold stages, made on transistors with working windings of electromagnetic polarized turnips in collector circuits, dynistors in emitter-circuits and time defining resistors in the base circuits, time specifying a capacitor and starting circuit, made in the form a capacitor connected to the baffle windings of electromagnetic polarized relays, differing in that, in order to increase the time delay, the time specifying the capacitor is connected between the inputs of the threshold stages, the first of which the operating coil of the electromagnetic polarized relay is connected to the collector of the transistor through the break contacts of the electromagnetic relay polarized second threshold stage, and a power circuit porogovk stages included make contacts polarized electromagnetic relay of the first threshold stage. Sources of information taken into account during the examination 1. USSR author's certificate No. 5Q6818, cl. H 01 H 47/18, 10.01.73.

2. USSR author's certificate number 265288, cl. H 03 K 17/28 (prototype