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Temperature adaptive ferrite switch driver

A technology of switch driver and switch drive circuit, which is applied in waveguide-type devices, pulse train generators, pulse generators, etc., can solve the problems of poor compensation accuracy, actual temperature deviation, affecting the performance indicators of ferrite switches, etc., and achieves improved bandwidth. Temperature performance indicators, the effect of temperature adaptive control

Active Publication Date: 2017-12-08
BEIJING INST OF RADIO MEASUREMENT
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The traditional ferrite switch driver with temperature compensation function usually puts the temperature sensor outside the microwave transmission line to collect the temperature of the working environment and then compensates. There is a deviation in the actual temperature, resulting in poor compensation accuracy and affecting the performance indicators of the ferrite switch

Method used

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  • Temperature adaptive ferrite switch driver

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Embodiment Construction

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0039] figure 1 It is a structural schematic diagram of a temperature-adaptive ferrite switch driver of the present invention.

[0040] Such as figure 1 As shown, Embodiment 1 is a temperature-adaptive ferrite switch driver, which includes: a single-state trigger circuit, an RS trigger circuit, a pre-amplification circuit, a voltage comparison circuit, and a ferrite switch driver circuit, operational amplifier circuit;

[0041] The single-state trigger circuit is used to output a negative pulse signal according to the state of the control signal;

[0042] The RS trigger circuit is used to output a high-level signal according to the negative pulse signal;

[0043] The pre-amplification circuit is used to amplify ...

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Abstract

The invention relates to a temperature adaptive ferrite switch driver. The ferrite switch driver comprises a single state trigger circuit, an RS trigger circuit, a pre-amplifying circuit, a voltage comparison circuit, a ferrite switch driving circuit and an operational amplifier circuit; the single state trigger circuit, the RS trigger circuit, the single state trigger circuit and the ferrite switch driving circuit are orderly connected; one end of the voltage comparison circuit is connected with the ferrite switch driving circuit, and the other end of the voltage comparison circuit is connected with the RS trigger circuit; and one end of the operational amplifier circuit is connected with the voltage comparison circuit, and the other end of the operational amplifier circuit is connected with the ferrite switch driving circuit. The temperature adaptive ferrite switch driver provided by the invention collects and calculates the ferrite material pulse current, and extracts temperature information of ferrite materials without using a temperature sensor, so as to perform related incentive compensation, thereby solving the problem of poorer compensation precision of a traditional temperature compensation method, and improving the wide temperature performance index of a ferrite switch.

Description

technical field [0001] The invention belongs to the field of ferrite switch drivers, in particular to the field of a temperature-adaptive ferrite switch driver. Background technique [0002] Ferrite switches have the function of changing the transmission channel of microwave signals, and are currently widely used in ground, airborne and satellite radar fields. The ferrite switch is mainly composed of a microwave transmission line cavity, a ferrite material, a coil, and a driver, wherein the ferrite material and the coil are located inside the microwave transmission line cavity, and the driver is located outside the microwave transmission line cavity. As an important part of the ferrite switch, the driver’s main function is to receive the switching control signal of the upper switch, alternately generate pulse current excitation to the dual coils, change the microwave characteristics of the ferrite material, and then realize the channel switching of the microwave signal. Sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/011H03K3/64H03H11/46H01P1/11
CPCH01P1/11H03H11/46H03K3/011H03K3/64
Inventor 魏明达
Owner BEIJING INST OF RADIO MEASUREMENT
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