Overvoltage protective device for internet-of-things radio frequency emitter

A technology of overvoltage protection device and radio frequency transmitter, which is applied in the direction of protection against overvoltage, can solve the problems of imperfect overvoltage protection and high equipment loss, and achieve the effect of small size, simple circuit and few components

Inactive Publication Date: 2015-03-25
成都新方洲信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the price of the power amplifier tube in RFID is relatively expensive, t

Method used

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  • Overvoltage protective device for internet-of-things radio frequency emitter

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing:

[0011] like figure 1 Shown: the present invention includes AC power supply AC, DC power supply E, switch K, transformer T, rectifier DR, voltage regulator IC, optocoupler relay SSR, AC contactor JC, electromagnetic relay J, the first diode VD1, the first Two diodes VD2, transistor VT, light emitting diode LED, potentiometer RP, voltmeter V, first capacitor C1, second capacitor C2, third capacitor C3, first resistor R1, second resistor R2, third resistor R3 , the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6, the live wire of the AC power supply AC is connected to the first end of the switch K, the neutral wire of the AC power supply AC is connected to the first end of the first winding of the transformer T, and the transformer T The second end of the first winding is connected to the second end of the switch K, and the first end of the DC power supply...

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Abstract

The invention discloses an overvoltage protective device for an internet-of-things radio frequency emitter. The overvoltage protective device comprises an altering current power source, a direct current power source, a switch, a transformer, a rectifier tube, a voltage stabilizing device, an optocoupler relay, an altering current contactor, electromagnetic relay, a first diode, a second diode, a triode, a light-emitting diode, a potentiometer, a voltmeter, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor. The overvoltage protective device for the internet-of-things radio frequency emitter has the advantages of being simple in circuit, sensitive to trigger, less in adopted element, small in size, easy to manufacture and low in cost and meanwhile has the function of protecting a preceding-stage power amplifier of the internet-of-things radio frequency emitter many times.

Description

technical field [0001] The invention relates to a matching device for a radio frequency transmitter of the Internet of Things, in particular to an overvoltage protection device for a radio frequency transmitter of the Internet of Things. Background technique [0002] The Internet of Things is based on the computer Internet, using RFID, wireless data communication and other technologies to construct an "Internet of Things" covering everything in the world. In this network, items (commodities) can "communicate" with each other without human intervention. Its essence is to use radio frequency automatic identification (RFID) technology to realize the automatic identification of items (commodities) and the interconnection and sharing of information through the computer Internet. And RFID is a technology that can make items "speak". In the concept of "Internet of Things", the RFID tags store standardized and interoperable information, which are automatically collected to the cen...

Claims

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Application Information

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IPC IPC(8): H02H3/20
Inventor 巫梦飞陈伟周卫民
Owner 成都新方洲信息技术有限公司
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