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Cooling method of capacitance boundary alarm controller and signal amplification circuit

A controller signal and amplifying circuit technology, applied in control/regulation systems, high-efficiency power electronic conversion, instruments, etc., can solve problems such as heat generation, energy consumption, and system efficiency reduction, and achieve simple circuits, reduce energy consumption, and improve system performance. efficiency effect

Inactive Publication Date: 2018-12-07
民航成都电子技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the internal power tubes of the op amp are in a series state, which will bear most of the voltage drop, consume most of the energy, and cause severe heat generation, thereby reducing system efficiency.

Method used

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  • Cooling method of capacitance boundary alarm controller and signal amplification circuit
  • Cooling method of capacitance boundary alarm controller and signal amplification circuit
  • Cooling method of capacitance boundary alarm controller and signal amplification circuit

Examples

Experimental program
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Effect test

Embodiment 1

[0034] For the heat reduction method of a capacitor enclosure alarm controller provided in this embodiment, see figure 1 The power MOS tube is driven by a half-bridge driver so that the power MOS tube only works in the switch state, and the output voltage of the adjustable power supply is chopped by the power MOS tube and then output to a high-frequency transformer for boosting. This technical solution drives the power MOS tube through the half-bridge driver, so that the power MOS tube only works in the switch state, that is, switches back and forth between the saturation area and the cut-off area, and effectively avoids the linear area, thereby reducing the energy consumption of the power MOS tube; And through the power MOS tube, the output voltage of the adjustable power supply is chopped and then output to the high-frequency transformer for boosting to realize signal amplification. Under the guarantee of the adjustable power supply, the overall power supply efficiency is imp...

Embodiment 2

[0036] A signal amplifying circuit of a capacitive boundary alarm controller provided in this embodiment includes:

[0037] The half-bridge driver is used to drive the power MOS tube so that the power MOS tube only works in the switching state;

[0038] An adjustable power supply for outputting voltage to the power MOS tube;

[0039] Power MOS tube, after chopping the output voltage of the adjustable power supply, output it to the high frequency transformer;

[0040] High-frequency transformer to step up the chopping signal.

[0041] Specifically, see figure 2 , the signal amplifying circuit of the capacitance enclosure alarm controller adopts the IR2104 half-bridge driver U1 to drive the first power MOS transistor Q1 and the second power MOS transistor Q3, and its digital circuit connection interface adopts a GPIO interface, and the input signal of the half-bridge driver Including 3.3V, 5V and 15V, it is compatible with the input of a square wave signal with an amplitude ...

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Abstract

The invention discloses a cooling method of a capacitance boundary alarm controller and a signal amplification circuit. According to the cooling method, a half-bridge driver drives a power MOS tube sothat the power MOS tube only works in a switching state, and the power MOS tube chops an output voltage of an adjustable power supply and then outputs the voltage to a high-frequency transformer forboosting. The half-bridge driver drives a power MOS tube so that the power MOS tube only works in the switching state, namely is switched between a saturated region and a cutoff region, a linear region is avoided effectively, energy consumption of the power MOS tube is reduced, the adjustable power supply is used to improve the total power efficiency, and compared with a manner that a driving signal is amplified via large power amplification in the prior art, the heating amount of the capacitance boundary alarm controller is reduced effectively, and the system efficiency is improved.

Description

technical field [0001] The invention belongs to the security field, and in particular relates to a heat reduction method and a signal amplifying circuit of a capacitance enclosure alarm controller. Background technique [0002] Capacitive fence alarm system is a set of security products with comprehensive protection, humanized design and modern technology. This product can generate an alarm for climbing intrusion, reaming hole intrusion and sabotage intrusion in the designated area, realizing 24-hour uninterrupted enclosure protection, which greatly relieves the work pressure of patrol personnel and greatly improves the safety of the protected area. The front-end detection part of the capacitive perimeter alarm system consists of two parts: an alarm controller and an alarm detection cable. Among them, the alarm controller is the core of the entire enclosure alarm system, which is responsible for signal transmission, signal detection, signal analysis and alarm control; the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/157H02M3/158H02M1/088H02M1/14
CPCH02M1/088H02M1/14H02M3/157H02M3/158H02M1/0054Y02B70/10
Inventor 刘培刚廖必凯高小波曹立陈洪钢丁舒何鹏
Owner 民航成都电子技术有限责任公司
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