SU586554A1 - Sawtooth voltage generator - Google Patents

Description

3

ditch 10-18. Clock 19 is applied to input 19. The output signal is removed from output 20.

The operation of the generator is as follows.

The working stroke begins with the charge of the nitrating capacitor 1 by the constant current of the transistor controlled current-stabilizing element 3. At the end of the simultaneous sweep stroke to the input of the transistor bit 2, the pulse emits a clock, it closes and the integrated conductor 1 is quickly discharged. The thus-formed ilio pulses are applied to the gates of the voltage-free transistors 6 and 7, and the iric pulse to the gate of the field-effect transistor 7 through a diode latch of level 4. The required operating mode of the field-effect transistors is absorbed by resistors 14 and 15 and by a bipolar transistor 9. At the drain of the field-effect transistor 7, a difference signal is selected, the value of which is determined by the amplitude of the output saw-tooth pulses. This signal is amplified by the bipolar transistor 8 and is applied to the transistor leveling current-stabilizing element 3.

If the output pulses, for example, have increased, this will lead to an increase in the output signal of the unit 5 for stabilizing the amplitude of the output signal and reducing the current of the transistor controlled current stabilizing element 3. The amplitude of the output} of the first pulses is restored. An analogous phenomenon will occur when the amplitude of the pulses decreases, the charge current in this case will increase.

The proposed voltage generator allows to obtain amplitude-stable sawtooth pulses when operating in a wide range of changes in the ambient temperature, as well as in measuring 4

the frequency of the following clock pulses. This allows the use of a sawtooth generator in devices that require a high constant amplitude and pulse.

Claims (2)

Invention Formula An alternator voltage generator containing an integrating capacitor connected to a transistor bit switch, through a transistor controlled tokensubsiruyuschiy element - with a power source, and through a diode latch level - with a block of stabilization of the output signal amplitude, the collector of one of the transistors of which is connected to the base of the transistor of the controlled current-stabilizing element, and the emitter of the second transistor of the stabilization unit of the output signal amplitude is connected to the power source, characterized in that, in order to improve the accuracy of stabilization of the output amplitude signal to the amplitude stabilization unit Two field trapsistors are introduced to the output signal, the gate of one of which is connected to the integrating capacitor, and the source through the resistor is connected to the power source, the gate of the second is connected to the diode level clamp, and its source is with the emitter of the mentioned transistors of the stabilization block of the amplitude of the output signal, while the drains of field-effect transistors are connected through resistors to the collector of the second transistor of the block stabilization of the amplitude of the output signal. Sources of information taken during the examination 1. Nateit of Germany No. 1766605, cl. 21 a 36/02, 1970. 2. Nat United States Ni 3577007, cl. 307-228, 1970. "R  Y-rC / Output Wvo o + fi -E,