SU1231601A1 - Frequency multiplier - Google Patents

Abstract

The invention relates to a pulse technique. Can be used in frequency synthesizers. The purpose of the invention is to increase the efficiency of the device. In order to achieve the supplied circuit, diodes 12 and 13c were added to it by charge accumulation. In addition, the frequency multiplier contains valve elements 1 and 2 on transistors, load 3, transformer 4, transistor 7, which is the source of the input signal, capacitors and resistors. At the outputs of the transformer 4 phorpfyut, there are short pulses arriving at the inputs of the valve elements. At the output, their pulses of both half-periods excite the oscillatory system of the output filter of the multiplexer and the frequency of the harmonics of the required frequency. When tuning the frequency multiplier, the output load circuit is disconnected, and a resistor is connected. 1 il. i (L to co od

Description

I

The invention relates to a pulse technique and can be used in frequency synthesizers.

The aim of the invention is to increase 1SPD device.

“The drawing is a schematic diagram of the device.

The frequency multiplier contains the first and second valve elements 1 and 2, the outputs of which are connected to the load 3, and the input of the first valve element is connected to the first terminal of the first winding of the transformer 4, the second terminal of which is connected to the input of the second valve element 2, and its middle point with a common bus device, the second winding of the transformer with the first capacitor 5 connected in parallel between the bus b of the power source and the input source 7, the first and second resistors 8 and 9, the second and third condensate ry 10 and 11, first and second diodes 12 and 13 .nakopleniem charge. The first diode 12 with charge accumulation is connected between the first output of the first winding of the transformer 4 and the first lining of the second capacitor 10, the second lining of which is connected to the common busbar device, the first lining of the second capacitor 10 is connected through the first resistor 8 to the power supply bus 6, the second diode 13 with accumulation of charge is connected between the second output of the first winding of the transformer 4 and the first lining of the second capacitor, 11, the second lining of which is connected to the common bus of the device, the first lining of the second capacitor 1 1 is connected via a second resistor 9 to a power supply line b.

The device works as follows.

The input signal is amplified and terminated in the collector circuit of the transistor of the input source source 7 on the transformer 4 with a resonant winding. The first winding of the transformer 4 and diodes 12 and 13 with charge accumulation together with the resistors 8 and 9 Offsets, the blocking capacitors 10 and 11, are used to form short pulses. During the first half-period of voltage, diodes 12 and 13 are flowing through the positive pole of the power source through resistors B and 9, which specify the value of

five

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about

five

five

the bias current of the diodes on the common busbar, this accumulation of charge occurs in the diode diode. .

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A change in polarity at the output of the first winding leads to the cessation of charge accumulation in the base of the diode, and for some part of the positive half-period the diode retains reverse conductivity until the accumulated charge is completely absorbed. The voltage on the diode is then equal to the diffuse potential (approximately 0.7 V) and does not exceed the response threshold of the valve element 1. When the accumulated charge becomes zero, the reverse conduction of the diode disappears in a very short period of time and on it The total voltage of the positive half-period applied to the diode at this time. Termination of the current in the circuit leads to a sharp increase in the voltage on the diode due to induction in the winding. Thus, short pulses are formed at the terminals of the transformer 4. These pulses come to the inputs of the valve devices. At the common output of the valve elements, the pulses of both half-periods excite the oscillatory system of the output filter of the multiplier at the harmonic frequency of the required multiplicity. When setting the frequency multiplier, the output load circuit is disconnected, and a resistor is connected. /

Claims (1)

Invention Formula A frequency multiplier containing the first and second valve elements, the outputs of which are connected to the load, and the input of the first valve element is connected to the first. the output of the first winding of the transformer, the second output of which is connected to the input of the second valve element, and its middle point is connected to the common bus of the device; the second winding of the transformer, in parallel with which the first capacitor is connected, is connected between the power supply and the input source, the first and second resistors, The second and third capacitors are distinguished by the fact that, in order to increase the efficiency, the first and second diodes with charge accumulation were introduced into it, with the first diode with charge accumulation being connected between the first and output of the first winding trans3 12316014 the formatter and the first plate are connected between the second terminal of the first obcondenser, the second plate of the transformer helix and the first plate are connected to the common bus of the device, the third capacitor, the second of which is connected to the common bus of the second capacitor The sensor is connected through the first device, while the first plate of the resistor is connected to the power supply bus; the second capacitor is connected via a second diode to accumulate a charge resistor by the power supply bus.