SU409363A1 - AMPLITUDE-PULSE CONVERTER - Google Patents

Description

one

The invention relates to a pulse technique and can be used in a measuring and computing technique for converting a sequence of voltage pulses, amplitude modulated, into a stand voltage.

The known pulse-amplitude converter containing a key transistor, whose collector-emitter junction is connected between the storage capacitor and the output terminal of the source of convertible pulse signals, and the base is connected through a resistor to the output terminal of the control source of the pulse signals, has a low speed and distorts the output signal.

The purpose of the invention is to increase the speed and reduce distortion of the output signal of the converter.

For this purpose, an additional transistor of the same conductivity transistor is connected to the proposed converter, the collector and the emitter of the additional transistor are connected to the emitter and collector of the key transistor, respectively, and the base is connected to the output terminal of the control source of pulsed signals through a resistor.

The drawing shows the electrical circuit of the proposed converter.

It contains a key transistor 1, whose collector-emitter junction is connected between the storage capacitor 2 and the output terminal of the source 3 of the signal to be converted, and the base is connected via a resistor 4 to the output terminal of the control impulse source 5 of the signal. An additional transistor 6, the conductivity of which is the same as that of the key transistor 1,

connected by a collector to the emitter of transistor 1, and by an emitter to the collector of transistor 1. The base of transistor 6 is connected via a resistor 7 to the output terminal of the control impulse source 5 of the signal. Out

the converter is terminal 8.

The Converter operates as follows.

When voltage appears on the output of source 3 of the converted signal, a short pulse is generated at the output of the controlling pulse source 5, which saturates transistors 1 and 6. At the same time, depending on the increase or decrease of the converted signal, one of the transistors

1 or 6 works in inverse mode, the other in direct mode. During the saturation of the transistors 1 and 6, the voltage on the zadomotor capacitor 2 is aligned with the voltage of the source 3 of the signal to be converted. After

the pulse ends from the source 5, the transistors 1 and 6 are locked, and the voltage is stored on the storage capacitor 2. With the arrival of the next voltage pulse from the source 3, the process is repeated. This is how a discrete amplitude-pulse signal is converted into a piecewise-step signal.

Subject invention

Amplitude-pulse converter containing a key transistor whose collector-emitter junction is connected between a storage capacitor and the output terminal of the source of convertible pulse signals, and the base is connected through a resistor to the output terminal of the control source of pulse signals, characterized in that, in order to improve speed and reduce the distortion of the output signal, it includes an additional transistor of the same conductivity as the key transistor, while the collector and the emitter are additional ADDITIONAL transistor are respectively connected to the emitter and collector transistor, and whose base is connected through a resistor to the output terminal of the control pulse signals source.