CN-122000747-A - Connector for connecting terminal equipment with external camera

CN122000747ACN 122000747 ACN122000747 ACN 122000747ACN-122000747-A

Abstract

The invention discloses a connector for connecting terminal equipment with an external camera. The connector for connecting the terminal equipment with the external camera comprises a first interface, a second interface, a signal amplifying module and a boosting module. The device comprises a first interface, a second interface, a signal amplification module, a boosting module and a power supply end, wherein the first interface is connected with an external camera, the second interface is connected with a terminal device, the input end of the signal amplification module is connected with the signal end of the first interface, the output end of the signal amplification module is connected with the signal end of the second interface, the signal amplification module is used for amplifying video signals output by the external camera, the input end of the boosting module is connected with the power supply end of the second interface, the output end of the boosting module is connected with the power supply end of the first interface, and the boosting module is used for receiving voltage output by the terminal device and performing boosting conversion and outputting working voltage meeting working requirements of the external camera. The connector for connecting the terminal equipment with the external camera can stably supply power to the external camera while amplifying the video signal of the external camera.

Inventors

XU SU
YANG JUNCHANG
LI MINGHE

Assignees

深圳市海洋王石化照明技术有限公司
深圳市海洋王照明工程有限公司
海洋王照明科技股份有限公司
海洋王（东莞）照明科技有限公司
深圳市海洋王绿色照明技术有限公司
深圳市海洋王铁路照明技术有限公司
深圳市海洋王场馆照明技术有限公司
深圳市海洋王电网照明技术有限公司
深圳市海洋王电气有限公司
深圳市海洋王公消照明技术有限公司
深圳市海洋王石油照明技术有限公司
深圳市海洋王技术有限公司

Dates

Publication Date: 20260508
Application Date: 20260130

Claims (10)

1. The utility model provides a connector that terminal equipment and external camera are connected which characterized in that includes: the first interface is connected with the external camera; the second interface is connected with the terminal equipment; The input end of the signal amplification module is connected with the signal end of the first interface, the output end of the signal amplification module is connected with the signal end of the second interface, and the signal amplification module is used for amplifying the video signal output by the external camera; the input end of the boosting module is connected with the power end of the second interface, the output end of the boosting module is connected with the power end of the first interface, and the boosting module is used for receiving the voltage output by the terminal equipment and performing boosting conversion and outputting working voltage meeting the working requirement of the external camera.
2. The connector for connecting a terminal device to an external camera according to claim 1, wherein the first interface and the second interface each comprise four pins; The first pin of the first interface is a grounding pin, the second pin and the third pin of the first interface are signal pins, the second pin and the third pin of the first interface are connected with the signal output end of the external camera, the fourth pin of the first interface is a power pin, and the fourth pin of the first interface is connected with the power supply end of the external camera; The first pin of the second interface is a grounding pin, the second pin and the third pin of the second interface are signal pins, the second pin and the third pin of the second interface are connected with the signal input end of the terminal equipment, the fourth pin of the second interface is a power pin, and the fourth pin of the second interface is connected with the power output end of the terminal equipment; The input end of the signal amplification module is connected with the second pin and the third pin of the first interface, and the output end of the signal amplification module is connected with the second pin and the third pin of the second interface; the input end of the boosting module is connected with the first pin and the fourth pin of the second interface, and the output end of the boosting module is connected with the first pin and the fourth pin of the first interface.
3. The connector for connecting the terminal device with the external camera according to claim 2, wherein the boost module comprises a boost chip, a first resistor and a second resistor; the power input pin of the boosting chip is connected with the fourth pin of the second interface, and the power output pin of the boosting chip is connected with the fourth pin of the first interface; The first end of the first resistor is connected with a power output pin of the boost chip, and the second end of the first resistor is connected with a voltage feedback pin of the boost chip; and the first end of the second resistor is connected with a node between the voltage feedback pin of the boost chip and the second end of the first resistor, and the second end of the second resistor is grounded.
4. The connector for connecting a terminal device to an external camera according to claim 3, wherein the boost module further comprises an energy storage inductor, a sixth capacitor and a third resistor; The first end of the energy storage inductor is connected with a fourth pin of the second interface, and the second end of the energy storage inductor is connected with a switch node pin of the boost chip; the sixth capacitor is connected between the switch node pin of the boost chip and the bootstrap pin of the boost chip; The first end of the third resistor is connected between the second end of the energy storage inductor and the switch node pin of the boost chip, and the second end of the third resistor is connected with the switch frequency programming pin of the boost chip.
5. The connector for connecting a terminal device to an external camera according to claim 4, wherein the boost module further comprises a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor; The first end of the first capacitor is connected with the first end of the energy storage inductor, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the first end of the energy storage inductor and the power input pin of the boost chip, and the second end of the second capacitor is grounded; The first end of the third capacitor is connected with the output pin of the voltage stabilizer of the boost chip, and the second end of the third capacitor is grounded; The first end of the fourth capacitor is connected with the power output pin of the boost chip, and the second end of the fourth capacitor is grounded.
6. The connector for connecting a terminal device to an external camera according to claim 5, wherein the boost module further comprises a seventh capacitor and a fourth resistor; the first end of the seventh capacitor is connected with a soft start programming pin of the boost chip, and the second end of the seventh capacitor is grounded; And the first end of the fourth resistor is connected with the peak current limiting pin of the adjustable switch of the boost chip, and the second end of the fourth resistor is grounded.
7. The connector of claim 6, wherein the boost module further comprises a fifth resistor and a fifth capacitor, the fifth resistor and the fifth capacitor being connected in series between an error amplifier compensation pin of the boost chip and ground.
8. The connector for connecting a terminal device with an external camera according to claim 2, wherein the signal amplifying module comprises an amplifying chip, a differential positive line input pin of the amplifying chip is connected with a second pin of the first interface, a differential negative line input pin of the amplifying chip is connected with a third pin of the first interface, a differential positive line output pin of the amplifying chip is connected with a second pin of the second interface, and a differential negative line output pin of the amplifying chip is connected with a third pin of the second interface.
9. The connector for connecting a terminal device to an external camera according to claim 8, wherein the signal amplifying module further comprises an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor; the first end of the eighth capacitor is connected with the fourth pin of the second interface, and the second end of the eighth capacitor is grounded; The first end of the ninth capacitor is connected with the fourth pin of the second interface, and the second end of the ninth capacitor is grounded; A first end of the tenth capacitor is connected with a fourth pin of the first interface, and a second end of the tenth capacitor is grounded; the first end of the eleventh capacitor is connected with the fourth pin of the second interface, and the second end of the eleventh capacitor is grounded; the first end of the twelfth capacitor is connected with the voltage stabilizing output pin of the amplifying chip, and the second end of the twelfth capacitor is grounded.
10. The connector for connecting a terminal device to an external camera according to claim 9, wherein the signal amplifying module further comprises a crystal oscillator and a pull-down resistor; The first end of the crystal oscillator is connected with a crystal oscillator input pin of the amplifying chip, and the second end of the crystal oscillator is connected with a crystal oscillator output pin of the amplifying chip; and a first end of the pull-down resistor is connected with a reference voltage pin of the amplifying chip, and a second end of the pull-down resistor is grounded.

Description

Connector for connecting terminal equipment with external camera Technical Field The invention relates to the technical field of external cameras, in particular to a connector for connecting terminal equipment with an external camera. Background Along with the popularization of intelligent terminal equipment, an external camera is widely applied to a plurality of fields as a common video acquisition device. The external camera is usually in physical connection with the terminal equipment through a connector, and transmits signals and power, and the working power supply of the external camera depends on the output voltage of the terminal equipment. In the prior art, when the connection distance between the external camera and the terminal equipment is long, the actual voltage supplied to the external camera is lower than the rated voltage required by normal operation of the external camera, and the problem of unstable operation of the external camera is further caused. Disclosure of Invention The invention provides a connector for connecting a terminal device and an external camera, which is used for solving the problem that the external camera cannot work normally due to insufficient power supply voltage of the external camera caused by long power supply line between the external camera and the terminal device. In order to solve the technical problems, the invention adopts the following technical scheme: in a first aspect, the present invention provides a connector for connecting a terminal device with an external camera, including: the first interface is connected with the external camera; the second interface is connected with the terminal equipment; The input end of the signal amplification module is connected with the signal end of the first interface, the output end of the signal amplification module is connected with the signal end of the second interface, and the signal amplification module is used for amplifying the video signal output by the external camera; the input end of the boosting module is connected with the power end of the second interface, the output end of the boosting module is connected with the power end of the first interface, and the boosting module is used for receiving the voltage output by the terminal equipment and performing boosting conversion and outputting working voltage meeting the working requirement of the external camera. Optionally, each of the first interface and the second interface includes four pins; The first pin of the first interface is a grounding pin, the second pin and the third pin of the first interface are signal pins, the second pin and the third pin of the first interface are connected with the signal output end of the external camera, the fourth pin of the first interface is a power pin, and the fourth pin of the first interface is connected with the power supply end of the external camera; The first pin of the second interface is a grounding pin, the second pin and the third pin of the second interface are signal pins, the second pin and the third pin of the second interface are connected with the signal input end of the terminal equipment, the fourth pin of the second interface is a power pin, and the fourth pin of the second interface is connected with the power output end of the terminal equipment; The input end of the signal amplification module is connected with the second pin and the third pin of the first interface, and the output end of the signal amplification module is connected with the second pin and the third pin of the second interface; the input end of the boosting module is connected with the first pin and the fourth pin of the second interface, and the output end of the boosting module is connected with the first pin and the fourth pin of the first interface. Optionally, the boost module includes a boost chip, a first resistor and a second resistor; the power input pin of the boosting chip is connected with the fourth pin of the second interface, and the power output pin of the boosting chip is connected with the fourth pin of the first interface; The first end of the first resistor is connected with a power output pin of the boost chip, and the second end of the first resistor is connected with a voltage feedback pin of the boost chip; and the first end of the second resistor is connected with a node between the voltage feedback pin of the boost chip and the second end of the first resistor, and the second end of the second resistor is grounded. Optionally, the boost module further includes an energy storage inductor, a sixth capacitor, and a third resistor; The first end of the energy storage inductor is connected with a fourth pin of the second interface, and the second end of the energy storage inductor is connected with a switch node pin of the boost chip; the sixth capacitor is connected between the switch node pin of the boost chip and the bootstrap pin of the boost chip; The first end of the third resistor is connected between