CN214014394U - Automatic positioning detection circuit based on monitoring display device USB output voltage - Google Patents
Automatic positioning detection circuit based on monitoring display device USB output voltage Download PDFInfo
- Publication number
- CN214014394U CN214014394U CN202022471612.2U CN202022471612U CN214014394U CN 214014394 U CN214014394 U CN 214014394U CN 202022471612 U CN202022471612 U CN 202022471612U CN 214014394 U CN214014394 U CN 214014394U
- Authority
- CN
- China
- Prior art keywords
- terminal
- automatic positioning
- display device
- output voltage
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 230000002457 bidirectional effect Effects 0.000 claims abstract 3
- 230000015556 catabolic process Effects 0.000 claims abstract 3
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000005693 optoelectronics Effects 0.000 abstract description 9
- 238000002955 isolation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a realize automatic positioning detection circuitry based on monitoring display device USB output voltage belongs to detection circuitry technical field, including optoelectronic coupler U6, 1 wiring end electric connection resistance R20's of optoelectronic coupler U6 one end, resistance R20's other end electric connection electric capacity C33's one end and the 1 wiring end of bidirectional breakdown diode D3 and interface CON 1's 1 wiring end, interface CON 1's 4 wiring end electric connection bidirectional breakdown diode D3's 2 wiring ends, the mode that switches on through optoelectronic coupler U6 opto-coupler has realized the function of keeping apart and transmitting information, and then has avoided not having good isolation function to lead to laser TV problem damage automatic positioning's detection circuitry or automatic positioning's detection circuitry problem to appear damaging the phenomenon of laser TV.
Description
Technical Field
The utility model relates to an automatic detection circuitry of location especially relates to and realizes automatic positioning detection circuitry based on monitoring display device USB output voltage, belongs to detection circuitry technical field.
Background
In the prior art, when a laser television is detected by an automatic positioning detection circuit, the problem of the laser television is caused to damage the automatic positioning detection circuit or the problem of the automatic positioning detection circuit is caused to damage the laser television because of no good isolation function, and therefore the automatic positioning detection circuit based on monitoring the USB output voltage of the display equipment is designed to improve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing realize automatic positioning detection circuitry based on monitoring display device USB output voltage, USB is not voltage output under the laser TV standby state, the USB of laser TV can export 5V voltage when the laser TV starts, optoelectronic coupler U6 opto-coupler switches on this moment, the singlechip will detect that Check _ USB _ V becomes 0V and then realizes the function that detects by 3.3V, the mode that switches on through optoelectronic coupler U6 opto-coupler has realized the function of keeping apart and transmission information, and then avoided not having good isolation function to lead to the laser TV problem to damage the detection circuitry of automatic positioning or the detection circuitry problem of automatic positioning to appear the phenomenon that the problem damaged the laser TV.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the circuit for realizing automatic positioning detection based on monitoring of the USB output voltage of the display device comprises a photoelectric coupler U6, wherein a 1 terminal of the photoelectric coupler U6 is electrically connected with one end of a resistor R20, the other end of the resistor R20 is electrically connected with one end of a capacitor C33, a 1 terminal of a diac D3 and a 1 terminal of an interface CON1, a 4 terminal of the interface CON1 is electrically connected with a2 terminal of the diac D3, the other end of the capacitor C33 and a2 terminal of the photoelectric coupler U6, a2 terminal of the photoelectric coupler U6 is also grounded, and the other end of the resistor R20 is electrically connected with a USB-5V.
Preferably, the 3 terminal of the photocoupler U6 is electrically connected to one end of the resistor R21, the other end of the resistor R21 is electrically connected to the power source VCC3.3V, and the 3 terminal of the photocoupler U6 is electrically connected to one end of the capacitor C32 and the output Check _ USB _ V.
Preferably, the other end of the capacitor C32 is grounded, and the 4 terminal of the optocoupler U6 is grounded.
Preferably, the photocoupler U6 is of type EL357N (B) (TA) -G, and the diac D3 is of type RLSD32A 241V.
Preferably, the capacitance of the capacitor C33 and the capacitance of the capacitor C32 is 100nf, the voltage is 50V, the resistance of the resistor R21 is 10K, and the resistance of the resistor R20 is 2K.
Preferably, the 1 terminal of the interface CON1 is VCC, the 2 terminal of the interface CON1 is D-, the 3 terminal of the interface CON1 is D +, and the 4 terminal of the interface CON1 is GND.
The utility model has the advantages of:
the utility model provides a realize automatic positioning detection circuitry based on monitoring display device USB output voltage, USB is not voltage output under the laser TV standby state, 5V voltage can be exported to laser TV's USB when the laser TV starts, optoelectronic coupler U6 opto-coupler switches on this moment, the singlechip will detect that Check _ USB _ V becomes 0V and then realizes the function that detects by 3.3V, the mode that switches on through optoelectronic coupler U6 opto-coupler has realized the function of keeping apart and transmission information, and then avoided not having good isolation function to lead to laser TV to go wrong the phenomenon that damages laser TV that the detection circuitry of automatic positioning or the detection circuitry of automatic positioning goes wrong.
Drawings
Fig. 1 is a circuit diagram of a preferred embodiment of the automatic positioning detection circuit based on monitoring the USB output voltage of the display device according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, the circuit for realizing automatic positioning detection based on monitoring of USB output voltage of a display device provided in this embodiment includes a photocoupler U6, a terminal 1 of the photocoupler U6 is electrically connected to one end of a resistor R20, another end of the resistor R20 is electrically connected to one end of a capacitor C33, a terminal 1 of a diac D3, and a terminal 1 of an interface CON1, a terminal 4 of the interface CON1 is electrically connected to a terminal 2 of the diac D3, another end of the capacitor C33, and a terminal 2 of the photocoupler U6, a terminal 2 of the photocoupler U6 is also grounded, and another end of the resistor R20 is electrically connected to USB-5V.
USB does not have voltage output under the laser TV standby state, the USB of laser TV can export 5V voltage when the laser TV starts, optoelectronic coupler U6 opto-coupler switches on this moment, the singlechip will detect that Check _ USB _ V becomes 0V and then realizes the function that detects by 3.3V, the mode that switches on through optoelectronic coupler U6 opto-coupler has realized the function of isolation and transmission information, and then avoided not having good isolation function to lead to the laser TV to go wrong and damage the detection circuitry of automatic positioning or the phenomenon that the detection circuitry of automatic positioning goes wrong and damages the laser TV.
In this embodiment, the 3 terminal of the photocoupler U6 is electrically connected to one end of the resistor R21, the other end of the resistor R21 is electrically connected to the power source VCC3.3V, and the 3 terminal of the photocoupler U6 is electrically connected to one end of the capacitor C32 and the output Check _ USB _ V.
In the present embodiment, the other end of the capacitor C32 is grounded, and the 4 terminal of the optocoupler U6 is grounded.
In the embodiment, the model of the photocoupler U6 is EL357N (B) (TA) -G, and the model of the diac D3 is RLSD32A 241V.
In this embodiment, the capacitance of the capacitor C33 and the capacitance of the capacitor C32 is 100nf, the voltage is 50V, the resistance of the resistor R21 is 10K, and the resistance of the resistor R20 is 2K.
In this embodiment, the terminal 1 of the interface CON1 is VCC, the terminal 2 of the interface CON1 is D-, the terminal 3 of the interface CON1 is D +, and the terminal 4 of the interface CON1 is GND.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (6)
1. Realize automatic positioning detection circuit based on monitoring display device USB output voltage, its characterized in that: the USB-type photoelectric coupler comprises a photoelectric coupler U6, wherein a 1 terminal of the photoelectric coupler U6 is electrically connected with one end of a resistor R20, the other end of the resistor R20 is electrically connected with one end of a capacitor C33, a 1 terminal of a diac D3 and a 1 terminal of an interface CON1, a 4 terminal of the interface CON1 is electrically connected with a2 terminal of the diac D3, the other end of the capacitor C33 and a2 terminal of the photoelectric coupler U6, a2 terminal of the photoelectric coupler U6 is grounded at the same time, and the other end of the resistor R20 is electrically connected with USB-5V.
2. The circuit for realizing automatic positioning detection based on monitoring of the output voltage of the display device USB according to claim 1, wherein: the 3 terminal of the photoelectric coupler U6 is electrically connected with one end of a resistor R21, the other end of the resistor R21 is electrically connected with a power supply VCC3.3V, and the 3 terminal of the photoelectric coupler U6 is electrically connected with one end of a capacitor C32 and an output Check _ USB _ V.
3. The circuit of claim 2 for implementing automatic positioning detection based on monitoring of display device USB output voltage, wherein: the other end of the capacitor C32 is grounded, and the 4 terminal of the photoelectric coupler U6 is grounded.
4. The circuit of claim 2 for implementing automatic positioning detection based on monitoring of display device USB output voltage, wherein: the model of the photoelectric coupler U6 is EL357N (B) (TA) -G, and the model of the bidirectional breakdown diode D3 is RLSD32A 241V.
5. The circuit of claim 2 for implementing automatic positioning detection based on monitoring of display device USB output voltage, wherein: the capacitance of the capacitor C33 and the capacitance of the capacitor C32 is 100nf, the voltage is 50V, the resistance value of the resistor R21 is 10K, and the resistance value of the resistor R20 is 2K.
6. The circuit of claim 2 for implementing automatic positioning detection based on monitoring of display device USB output voltage, wherein: the 1 terminal of the interface CON1 is VCC, the 2 terminal of the interface CON1 is D-, the 3 terminal of the interface CON1 is D +, and the 4 terminal of the interface CON1 is GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471612.2U CN214014394U (en) | 2020-10-31 | 2020-10-31 | Automatic positioning detection circuit based on monitoring display device USB output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471612.2U CN214014394U (en) | 2020-10-31 | 2020-10-31 | Automatic positioning detection circuit based on monitoring display device USB output voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214014394U true CN214014394U (en) | 2021-08-20 |
Family
ID=77302152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022471612.2U Active CN214014394U (en) | 2020-10-31 | 2020-10-31 | Automatic positioning detection circuit based on monitoring display device USB output voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214014394U (en) |
-
2020
- 2020-10-31 CN CN202022471612.2U patent/CN214014394U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5322612B2 (en) | Optoelectric cable | |
| CN112583682B (en) | Bus communication circuit and device | |
| CN214014394U (en) | Automatic positioning detection circuit based on monitoring display device USB output voltage | |
| CN111934304A (en) | A protection circuit and protection method for preventing hot-swap voltage surge | |
| CN107942189A (en) | A kind of detection device of feeder ear wiring condition, conduction charging system and electric car | |
| CN109361467A (en) | A kind of optical module | |
| CN219145076U (en) | Quick charging circuit | |
| CN216598279U (en) | Lightning protection PDU with pluggable power line | |
| CN118677433A (en) | Detection circuit, method, electronic device and storage medium | |
| CN210270872U (en) | Portable serial port detector | |
| CN214013869U (en) | Reliable single-phase wiring detection circuit of commercial power | |
| CN215419641U (en) | Communication system | |
| CN208607309U (en) | The protection circuit and its electronic equipment of connector | |
| CN220626424U (en) | Detection net twine insertion device | |
| CN201127057Y (en) | Power supply and protective circuit for USB interface as well as digital television receiver having the same | |
| CN219577033U (en) | IC card control circuit, equipment for reading and writing IC card and ultrasonic flowmeter | |
| CN207397258U (en) | A kind of test nine kinds of needles turns SFP interface circuits | |
| CN205847285U (en) | A kind of fiber optical transceiver | |
| CN221595232U (en) | Signal line detection circuit and converter device | |
| CN221509133U (en) | Self-adaptive backboard power supply system | |
| CN221041793U (en) | Gating system of Type-C interface | |
| CN214314543U (en) | Anti-interference isolation communication circuit | |
| CN214380067U (en) | Circuit capable of protecting USB power interface of host | |
| CN215498969U (en) | Self-addressing data acquisition positioning relay circuit | |
| CN222763883U (en) | A circuit capable of realizing bidirectional communication and power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |