SU641422A1

SU641422A1 - Stabilized dc voltage source

Info

Publication number: SU641422A1
Application number: SU752102335A
Authority: SU
Inventors: Станислав Николаевич Прытков
Original assignee: Московский Ордена Трудового Красного Знамени Электротехнический Институт Связи
Priority date: 1975-02-07
Filing date: 1975-02-07
Publication date: 1979-01-05

Description

II

Изобретение относитс к электротехнике и может примен тьс в устройст- вах электропитани при необходимости обеспечени параллельной работы нескольких стабилизаторов посто шого напр жени lj,2 .The invention relates to electrical engineering and can be applied in power supply devices when it is necessary to ensure the parallel operation of several constant voltage regulators lj, 2.

Наиболее близким к предлагаемому изобретению техкическим решением вл етс стабилз1анрованный источник поото нного напр жешш, содержащий, по меньшей мере, два стабилизатора, каждый из которых состоит из последовательного регулирующего элемента и узла ограничени тока, включенного в выходную цепь стабилизатора, обш й дл двух стабилизаторов усилительно-измерительный блок, входом соединенный с об1Ш{ми цл шаух стабилизаторов выходными вьшодами f2|,The closest technical solution to the invention is a stabilized source of a negative voltage, containing at least two stabilizers, each of which consists of a series regulating element and a current limiting unit included in the output stabilizer circuit, which is amplified for two stabilizers -measuring unit, the input connected to the w1 {mi tsl shauh stabilizers output outputs f2 |,

Целью изобретени вл етс улроще- Ш1е устройства и обеспечение устойчивой работы стабилизаторов напр жени при параллельном включении на общуюThe aim of the invention is to improve the device and ensure the stable operation of voltage regulators with parallel connection to a common

Нагрузку.Load

Эта цель достигаетс тем, что в стабилизированном источнике посто нного напр лсени , соцержащем, по меньшей мере, два стабилизатора, каждый из которых состоит из последовательного ре-This goal is achieved by the fact that, in a stabilized source of a constant voltage, there are at least two stabilizers, each of which consists of a successive stabilizer.

гупирующего элемента и узла ограничени тока, включенного в выходную цепь стабилизатора, усилительно-измерительный блок, входом соединенный с общими дл двух стабилизаторов выходнымиof the guiding element and the current limiting unit included in the output circuit of the stabilizer, an amplifier-measuring unit, the input connected to the output common to the two stabilizers

выводами, каждый из стабилизаторов снабжен схемой разделени ИЛИ, выход которой подключен ко входу регулирующего элемента, а входы подключены соответственно к выходу узла ограничени each of the stabilizers is equipped with an OR separation circuit, the output of which is connected to the input of the regulating element, and the inputs are connected respectively to the output of the limiting node

тока и усилительно-измерительного блока .current and amplifier-measuring unit.

На фиг, 1 представлена блок-схема предлагаемого источника посто нного напр же1ш ; на фиг, 2 - принципиальна электрическа схема.FIG. 1 is a block diagram of the proposed source of a constant voltage; FIG. 2 is a circuit diagram in principle.

Claims

The stabilized DC voltage source contains stabilizers 1, 2 connected to a common load with 36 U voltage each of the stabilizers contains a series regulating element 3 (4), a current limiting node 5 (6) included in the output circuit of the amplifier-measuring unit 7t common for both stabilizers is the inlet of the coaxial. with the output of 1mn exits, and the output through the corresponding d of each hundred & LIATOR separation circuit OR 8 (9) with input control element 3 (4), At EG 2 the basic power supply diagram is shown, ensure that the key switch of the relay stabilizer (3, 8 5, 7) and the linear stabilizer (4 , 6, 7, 9) 8 HZ9 block assignments correspond to the notation in FIG. 1, and the position of Yu is a smoothing filter. The scheme works as follows. How. only when the resistance of the load decreases, for example, the linear stabilizer (Fig 2) turns out to be a paBJiHM limiting current given by the sensor of the current limiting node 6, does the transistor of the node 6 open, which increases current through the linear stabilizer. A further current will pass through another stabilizer, for example, a key stabilizer. Thus, at first loading the stabilizers with a lower internal resistance, and then with a large one. Having one common amplifying metering block allows you to get a 5 volt voltage at the output of the power supply. Thanks to the separation schemes OR 8.9, it performs control of regulating elements 3,4 either from nodes 5,6 of the current limit or from a common amplifier-measuring unit 7. In the proposed device, compared with the known, the reliability of the power source is improved, stabilizers work on a common load is provided, the control circuit is simplified. The claims of the invention and the Stabilized constant voltage source, containing at least an ava stabilizer, each of which consists of a series regulating element and a current limiting unit included in the output circuit of the stabilizer, an amplifier-measuring unit common to two stabilizers, is connected to the input common for the two stabilizers, the output, characterized in that, in order to simplify and ensure the stable operation of the stationary amps, each of the stabilizers is equipped with a separation circuit OR, the output of which is connected to the input of the regulating element, and the inputs are connected respectively to the output of the current limiting node and the amplifier-measuring unit. Sources of information taken into account at. expert; 1, USSR Copyright Certificate No. 399841 ,, Q O5 F 1/56, 1972. 2, USSR Copyright Certificate No. 451987, Q 05 F 1/56, 1974.

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