CN213399560U - Mobile interface circuit - Google Patents
Mobile interface circuit Download PDFInfo
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- CN213399560U CN213399560U CN202022056512.3U CN202022056512U CN213399560U CN 213399560 U CN213399560 U CN 213399560U CN 202022056512 U CN202022056512 U CN 202022056512U CN 213399560 U CN213399560 U CN 213399560U
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- capacitor
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- interface
- boost circuit
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- 239000003990 capacitor Substances 0.000 claims description 83
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to an interface communication technology field, concretely relates to remove interface circuit can realize the back that steps up the direct current voltage of TYPEC input for removing the power supply of semi-automatic ticket vending machine, satisfied the long demand of continuing a journey of semi-automatic ticket vending machine when increasing circuit expansibility. The utility model discloses remove interface circuit, including TYPEC interface and boost circuit unit, the TYPEC interface is connected with boost circuit unit input, the boost circuit unit is used for supplying power for removing semi-automatic ticket machine after stepping up the direct current voltage of TYPEC interface input. The utility model is suitable for a portable ticket vending machine.
Description
Technical Field
The utility model relates to an interface communication technology field, concretely relates to remove interface circuit.
Background
With the development of subway line networking, the passenger flow volume is increased rapidly, the passenger flow is not distributed uniformly, the dynamic change of the passenger flow of partial stations is realized, and the use intensity of a mobile semi-automatic ticket vending machine (mobile BOM for short) is improved. The original mobile BOM interface communication technology and battery management technology cannot meet the increasing requirements of mobile BOM use strength.
Existing mobile BOM interface circuits typically have: the simple interface that charges, a net gape, no TYPEC interface, the mobile BOM is thick and heavy, duration is about 2 hours, can't satisfy the demand to mobile device lightweight, long duration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a remove interface circuit is applied to and removes semi-automatic ticket vending machine, has increased TYPEC interface and boost circuit, can realize the back that steps up the direct current voltage of TYPEC input for removing the power supply of semi-automatic ticket vending machine, satisfied the long demand of continuing a journey of semi-automatic ticket vending machine of removal when increasing the circuit expansibility.
The utility model discloses a following technical scheme realizes above-mentioned purpose, removes interface circuit, is applied to and removes semi-automatic ticket vending machine, including TYPEC interface and boost circuit unit, the TYPEC interface is connected with boost circuit unit input end, the boost circuit unit is used for supplying power for removing semi-automatic ticket vending machine after stepping up the direct current voltage of TYPEC interface input.
Further, in order to optimize the boost circuit unit, the boost circuit unit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a first inductor L1, a first zener diode D1, and a control chip PL7512, wherein the first pin HVDD of the control chip PL7512 is grounded through the ninth capacitor C9, the second pin OC is grounded through the first resistor R1, and is connected to the output terminal of the boost circuit unit through the second resistor R2, the third pin VCC of the control chip PL7512 is connected to the ground terminal of the boost circuit unit through the fifth resistor EN 3, and the fifth resistor FB 5 is connected to the output terminal of the boost circuit unit, the third resistor R6 is connected with one end of a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8 respectively, the other end of the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 are connected with the output end of the boost circuit unit respectively, the output end of the boost circuit unit is further connected with the cathode of the first voltage-stabilizing diode D1, the anode of the first voltage-stabilizing diode D1 is connected with the input end of the boost circuit unit, and the input end of the boost circuit unit is further grounded through the first capacitor C1 and the second capacitor C2 respectively.
Further, in order to improve the circuit stability, the control chip is PL 7512.
Furthermore, in order to increase the cruising ability, the mobile interface circuit further comprises a battery pack, an MCU power supply, a power switch and a reader-writer power supply, wherein the output end of the booster circuit unit is respectively connected with the battery pack and the power switch, and the power switch is respectively connected with the MCU power supply and the reader-writer power supply.
Furthermore, in order to improve the expansion capability of the circuit, the mobile interface circuit further comprises a USB interface and an RJ45 network port, and the USB interface and the RJ45 network port are respectively connected with the MCU power supply.
Furthermore, in order to facilitate timely understanding of the electric quantity condition, the mobile interface circuit further comprises a power supply and an electric quantity indicating module, and the power supply and the electric quantity indicating module are respectively connected with the TYPEC interface and the output end of the booster circuit unit.
The utility model discloses increased TYPEC interface and boost circuit, the TYPEC interface has greatly improved the expansibility of mobile interface circuit, and boost circuit can provide the power for removing semi-automatic ticket machine after stepping up the direct current voltage of TYPEC interface input, include for the group battery charging, give read write line and MCU the control unit power supply, can also increase the duration of removing semi-automatic ticket machine when improving the expansibility.
Drawings
Fig. 1 is a structure diagram of the boost circuit of the present invention.
Fig. 2 is a structure diagram of the mobile interface circuit of the present invention.
Detailed Description
The utility model discloses remove interface circuit is applied to and removes semi-automatic ticket vending machine, including TYPEC interface and boost circuit unit, the TYPEC interface is connected with boost circuit unit input end, the boost circuit unit is used for supplying power for removing semi-automatic ticket vending machine after stepping up the direct current voltage of TYPEC interface input.
As shown in fig. 1, the boost circuit unit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a first inductor L1, a first zener diode D1, and a control chip, wherein a first pin HVDD of the control chip is grounded through a ninth capacitor C9, a second pin OC is grounded through the first resistor R1, and is connected to the output terminal of the boost circuit unit through the second resistor R2, a third pin VCC of the control chip is grounded through a third capacitor C3, a fourth pin FB 82, a fifth pin is connected to the output terminal of the boost circuit unit through a fifth resistor R6, and a fifth resistor R5, and a fifth resistor R3634, and a fifth resistor R5, respectively connected to the output terminal of the boost circuit unit, One end of a sixth capacitor C6, one end of a seventh capacitor C7 and one end of an eighth capacitor C8 are connected, the other end of the fifth capacitor C5, the other end of the sixth capacitor C6, the other end of the seventh capacitor C7 and the other end of the eighth capacitor C8 are respectively connected with the output end of the voltage boosting circuit unit, the output end of the voltage boosting circuit unit is further connected with the cathode of the first voltage stabilizing diode D1, the anode of the first voltage stabilizing diode D1 is connected with the input end of the voltage boosting circuit unit, and the input end of the voltage boosting circuit unit is further grounded through the first capacitor C1 and the second capacitor C2.
The first capacitor C1, the second capacitor C2, the third capacitor C3, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 adopt 22uF capacitors, the fourth capacitor C4 adopts 47nF capacitors, the ninth capacitor C9 adopts 0.1uF capacitors, the tenth capacitor C10 adopts 10pF capacitors, the eleventh capacitor C11 adopts 1nF capacitors, the first resistor R1 adopts 51K Ω resistors, the second resistor R2 adopts 10 Ω resistors R1, the third resistor R3 adopts 1.5 Ω resistors R1, the fourth resistor R4 adopts 8.2K Ω resistors, the fifth resistor R5 adopts 100K resistors, the sixth resistor R6 adopts 11K Ω resistors R6, the first inductor C6863 u 3 h 593 u 3 h, and the first inductor C599 h diodes.
In order to improve the circuit stability, the control chip can adopt PL7512, PL7512A is a current control mode boost converter, Pulse Width Modulation (PWM), a built-in 15m omega/10A/14 VMOSFET can be used for high power and high conversion efficiency, peripheral elements are few and space is saved, the boost converter is suitable for a mobile device, the wide working voltage is 2.7V-12V, the single-section lithium battery and the double-section lithium battery can be used, the accurate feedback voltage is 1.2V (+/-2%), the overcurrent protection is adjusted through an external resistor, the current control mode enables the transient response and the system stability to be good, the light load enters a power saving mode (SkipMode) to achieve the light load high efficiency, and the package is SOP-8L (EP).
The utility model discloses remove interface circuit still includes group battery, MCU power, switch, reader writer power, and its schematic structure is as shown in FIG. 2, and boost circuit unit output is connected with group battery and switch respectively, and switch is connected with MCU power and reader writer power respectively.
The utility model discloses remove interface circuit still includes USB interface and RJ45 net gape, and its schematic structure is as shown in figure 2, the USB interface is connected with the MCU power respectively with the RJ45 net gape.
The utility model discloses remove interface circuit still includes power and electric quantity indication module, its schematic structure is like figure 2, power and electric quantity indication module are connected with TYPEC interface and boost circuit unit output respectively.
The working voltage range of the mobile interface circuit of the utility model is 2.7V-12V; the maximum adjustable output voltage is 13V; fixed operating frequency 400 kHz; FB feedback voltage 1.2V (+ -2%); a built-in 15m omega, 10A,14 VMOSFET; the current consumption is maximum when the machine is shut down; over-temperature protection is carried out at 150 ℃; built-in soft start; adjustable over-current protection 2A-10A; encapsulating SOP-8L (EP).
Through the utility model discloses remove the reasonable design of interface circuit, can also make and remove semi-automatic ticket vending machine inner space and obtain rational utilization, make and remove semi-automatic ticket vending lightweight more.
To sum up, the utility model discloses can realize the back that steps up the DC voltage of TYPEC input for removing the power supply of semi-automatic ticket machine, satisfied the long demand of continuing a journey of semi-automatic ticket machine of removal when increasing circuit expansibility.
Claims (6)
1. The mobile interface circuit is applied to a mobile semi-automatic ticket vending machine and is characterized by comprising a TYPEC interface and a booster circuit unit, wherein the TYPEC interface is connected with the input end of the booster circuit unit, and the booster circuit unit is used for boosting the direct-current voltage input by the TYPEC interface and then supplying power to the mobile semi-automatic ticket vending machine.
2. The mobile interface circuit of claim 1, wherein the boost circuit unit comprises a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a fourth capacitor (C4), a fifth capacitor (C5), a sixth capacitor (C6), a seventh capacitor (C7), an eighth capacitor (C8), a ninth capacitor (C9), a tenth capacitor (C10), an eleventh capacitor (C11), a first inductor (L1), a first voltage stabilizing diode (D1), and a control chip, the first pin HVDD of the control chip is grounded through a ninth capacitor (C9), the second pin OC is grounded through the first resistor (R1), and is connected to the output terminal of the boost circuit (R2), the third pin VCC of the control chip is grounded through a third capacitor (C3), the fourth pin EN is empty, the fifth pin FB is connected with the output end of the boost circuit unit through a fifth resistor (R5), and is respectively connected with one end of a fifth capacitor (C5), a sixth capacitor (C6), a seventh capacitor (C7) and one end of an eighth capacitor (C8) through a sixth resistor (R6), the other ends of the fifth capacitor (C5), the sixth capacitor (C6), the seventh capacitor (C7) and the eighth capacitor (C8) are respectively connected with the output end of the boost circuit unit, the output end of the boost circuit unit is further connected with the cathode of a first voltage stabilizing diode (D1), the anode of the first voltage stabilizing diode (D1) is connected with the input end of the boost circuit unit, and the input end of the boost circuit unit is respectively grounded through a first capacitor (C1) and a second capacitor (C2).
3. The mobile interface circuit of claim 2, wherein the control chip is PL 7512.
4. The mobile interface circuit according to claim 1, further comprising a battery pack, an MCU power supply, a power switch, and a reader/writer power supply, wherein the output terminal of the boost circuit unit is connected to the battery pack and the power switch, respectively, and the power switch is connected to the MCU power supply and the reader/writer power supply, respectively.
5. The mobile interface circuit according to claim 4, further comprising a USB interface and an RJ45 network port, wherein the USB interface and the RJ45 network port are respectively connected to the MCU power supply.
6. The mobile interface circuit of claim 1, further comprising a power and charge indication module, the power and charge indication module being connected to the TYPEC interface and the boost circuit unit output, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056512.3U CN213399560U (en) | 2020-09-18 | 2020-09-18 | Mobile interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056512.3U CN213399560U (en) | 2020-09-18 | 2020-09-18 | Mobile interface circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213399560U true CN213399560U (en) | 2021-06-08 |
Family
ID=76179637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022056512.3U Expired - Fee Related CN213399560U (en) | 2020-09-18 | 2020-09-18 | Mobile interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213399560U (en) |
-
2020
- 2020-09-18 CN CN202022056512.3U patent/CN213399560U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |