SU1229742A1 - Voltage stabilizer with continuous-pulsed control - Google Patents

Abstract

The invention makes it possible to provide protective properties of a voltage regulator with continuous pulse regulation. For this, two voltage dividers are introduced into it. One of the dividers 4, 5 is connected to the input of the linear stabilizer 6. The second divider 7, 8 is connected to the output of the stabilizer 6. At the same time, the outputs of the dividers are connected to the input of the control stabilizer 1 unit 2. This creates a short circuit protection while retaining all the properties scheme. When the short circuit is eliminated, the device returns to the working stabilization mode. 1 il. tc oo

Description

The invention relates to electrical engineering and can be used in power supply devices,

The purpose of the invention is to protect the stabilizer from short-circuiting the load.

The drawing shows a voltage regulator circuit with continuous-pulse control.

The device contains a pulse stabilizer 1, a node 2 controlling a pulse stabilizer, a DLC filter 3, a voltage divider; consisting of resistors, a linear stabilizer 6, a reference voltage divider consisting of resistors 7 5 8 5 load 9,

Impulse: stabilizer 1 is permanent; for example, Keny is connected to a rectifier by a power input terminal, and a power output terminal is connected to the input of a DLC filter 3, which is connected to a power input terminal of a linearizer 6. A output power terminal of a linear stabilizer Isolator b is connected, with a load of 9,

The control unit 2 of the pulse stabilizer is connected to the control input of the impulse stabilizer 1 e by one of the inputs kn. 2 is connected to the output of the divider 4.5, and the other input to the output of the reference divider 4.5 is connected to the power input of the linear stabilizer 6, Reference divider 7.8 under the keys to the power output of the stabilizer 6,

The control unit of the pulse stabilizer 2 controls the pulse stabilizer so as to match the equality of the voltages coming from the voltage dividers 4.5 and 7.8 to both inputs of the node 2,

Voltage dividers 4.5 and 7.8 are calculated: so that the equal voltage at the inputs of node 2 is ensured with the lowest possible voltage drop on the linear stabilizer 6, Voltage, coming from the reference divider 7.8 to one of the the inputs of the control unit 2 and the 1-l1 pulse stabilizer, in the operating mode, are maintained with a constant linear stabilizer 6,

The device works as follows.

When changing the input voltage of the stabilizer or when the current changes

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load output voltage at load 9 due to linear stabilizer 6 remains unchanged, & therefore, part of this tension comes from, and from the reference splitter 7.8. one of the inputs of node 2 does not change, the voltage supplied to the other input of node 2 changes, and the voltage at the inputs of node 2 is violated, and node 2 controls the pulse stabilizer so as to restore the equality of voltages its inputs, i.e., the voltage at the input of the linear stabilizer 6 changes to a level at which the voltage taken from divider 4.5 to node 2 is comparable to the voltage coming from the reference; l 7.8 that corresponds to a constant voltage drop on the linear stabilizer 6. Then In any perturbing effect, the voltage drop across the linear stabilizer remains constant, which ensures a high efficiency factor of the device.

In case of a short circuit of load 9, the excess voltage of the stabilizer tends to zero. The voltage coming from the reference divider 7, B to 2, also tends to zero. The equality of the voltages at the inputs of the node 2 is violated. To restore the equality of the voltages at the inputs of the node 2, the latter closes the pulse stabilizer 1, while the voltage coming to the input of the linear stabilizer 6 from the output of the DLC filter decreases sharply; limiting many times the short circuit current. When the short circuit is eliminated, the stabilizer returns to the working

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Thus connecting inputs

The control unit of the pulse stabilizer 2 through voltage dividers to the power input and output of the linear stabilizer 6 makes it possible, without substantial expense, to create protection against short circuits while maintaining the positive properties of the known stabilizer. Having a common power bus for the pulse and linear stabilizers simplifies the control unit of the pulse stabilizer, p) expands the scope of the device.

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F. the formula of the invention chen to the input power terminal of the linear stabilizer, I distinguish

A voltage stabilizer with a continuous and with the fact that, in order to create a pulse-controlled regulation, of protective properties, a pulse voltage stabilizer is introduced into it, with two voltage dividers, the first ground voltage The control node is connected to the input ports, and the second, the output of which is connected to its swarm support divider, is connected to the output control input, the DLC filter and the linear stabilizer terminals, and the linear stabilizer, and the output-outputs of the dividers are connected to the input power clamp pulse station a pulsed stabilizer through a DLC filter with a constant voltage switch.

Compiled by N.Vornovchtska Editor N, Gunke Tehred O.Gortvay Corrector I.Erdeyi

Order 2449/48 Circulation 836 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

A voltage regulator with continuous-pulse regulation, comprising a pulsed DC voltage regulator, a control unit, the output of which is connected to its control input, a DLC filter and a linear stabilizer, the output power clamp of a pulse stabilizer through a DLC filter connected to the input power clamp of a linear stabilizer , I distinguish with the fact that, in order to create protective properties, two voltage dividers are introduced into it, the first of which is connected to the input voltage, the second. A swarm reference divider is connected to the output terminals of the linear stabilizer, and the outputs of the dividers are connected to the inputs of the control unit of the pulsed DC stabilizer.