SU444172A1 - Key voltage regulator - Google Patents

Description

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The invention relates to power supply devices of radio equipment and automation.

Iavistna key stabilizers in which the transistor in the regulating element is switched on sequentially with} loading „

However, in known stabilizers, it is not possible to obtain a voltage higher or lower than the input voltage at the output.

The purpose of the invention is to expand the Permissible limits of change of the input

ng1pr zhini.

This is achieved by the fact that an additional regulating element c is connected between the inputs of the stabilizer and the regulating element; A KJibJ4eBbiM transistor connected in parallel with the load, the control input of a koro1-o is connected to the output of the control org-ana. When e | -th Hit the output of the parallel key, an increase in the voltage to ypcjBHH, ensuring normal

the operation of the nose key.

The drawing shows the principle, on the electronic diagram of the device.

The stabilizer contains a regulator made on transistors 1 and 2.1

the diode 3, the inductor 4 and the capacitor 5, the operation of the short control device 6 controls.

A regulating organ with trapsis-mountain 7, which is connected naralleys nag- (narrow, throttle 8, diode 9 and kadensatorohl 10. The input of transistor 7 is connected to the output of control device 6, common for both of them). opratioB.

The stabilizer works as follows.

 With HOCiOHHHOM current per runes, the input voltage increases 11n1, increases with and 11s.1N | 1Lack on the capacitor 1O. With ech v (the output voltage remains 1-1 unalterable due to the feedback, and the current at the input of the key 1 is increased.

E-if you increase the load current at a constant input voltage, ycTix Control Control 6 changes the well-operation of the trans-Jurev 1 and 7 so that the voltage on the capacitor Yu remains

constant, and the current of transistor 1 increases. In this case, the bias voltage remains unchanged.

Thus, the stabilization of the implementation of-. is at the input voltage both: greater and less than the output voltage of the stabilizer.

Subject invention

A key voltage regulator containing a control, the output of which is connected to a control input of a regulating element with a key transistor connected in series with a load, which differs from. in order to expand the limits; changes in the input voltage between the inputs of the stabilizer and the regulating element include an additional regulating element with a key transistor connected in parallel to the load, the control input of which is connected to the output of the control element.

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