CN210744821U - Integrated backup power supply unit for locomotive integrated wireless communication equipment - Google Patents
Integrated backup power supply unit for locomotive integrated wireless communication equipment Download PDFInfo
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- CN210744821U CN210744821U CN201921821589.6U CN201921821589U CN210744821U CN 210744821 U CN210744821 U CN 210744821U CN 201921821589 U CN201921821589 U CN 201921821589U CN 210744821 U CN210744821 U CN 210744821U
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- 238000004891 communication Methods 0.000 title claims abstract description 11
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 77
- 238000001514 detection method Methods 0.000 claims abstract description 69
- 238000007600 charging Methods 0.000 claims abstract description 30
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an integrated backup power supply unit for wireless communication equipment is synthesized to locomotive, including input voltage detection circuitry, input current detection circuitry, super capacitor charging circuit, super capacitor charge equalizer circuit, boost circuit, output voltage detection circuitry, output current detection circuitry and control module, this design has input under-voltage overvoltage protection, input current voltage detects, super capacitor overcharge protection, output overvoltage protection and output current voltage detect the function, can realize that input voltage directly is the back level power supply, when input voltage unsatisfied requirement, super capacitor can be immediately for the back level circuit power supply until the energy exhausts. The functional requirement of the equipment on the backup power supply is met, the super capacitor does not need to be maintained, the service temperature range is wide, the maintenance cost of the equipment by using personnel is reduced, and the reliability of the equipment is improved.
Description
Technical Field
The utility model relates to a wireless communication equipment is synthesized to the locomotive, in particular to an integrated reserve electrical unit that is used for wireless communication equipment is synthesized to locomotive.
Background
The locomotive integrated wireless communication equipment has been applied to railways in China for more than 8 years, and plays an increasingly important role in daily transportation command of railways. Since the locomotive integrated wireless communication equipment is put into use, with the development of railway transportation industry, customers continuously put forward new functional requirements on the CIR, related departments release a series of CIR equipment and application supplement technical specifications successively, the CIR function is continuously perfected, and higher requirements on the power supply reliability are also provided, so that the super capacitor has the advantages of wide use temperature range, no maintenance and the like in order to adapt to severe environment of trains and solve the problems of narrow use temperature range, high maintenance cost and the like of the storage battery, and the replacement of the storage battery as a backup power supply energy storage element is a good choice.
Disclosure of Invention
In view of the above problems existing in the prior art, the utility model provides an integrated back-up power supply unit for wireless communication equipment is synthesized to locomotive. The design has the functions of input under-voltage and over-voltage protection, input current and voltage detection, super capacitor overcharge protection, output over-voltage protection and output current and voltage detection, can realize that input voltage directly supplies power for a later stage, and when the input voltage does not meet the requirement, the super capacitor can immediately supply power for the later stage circuit until the energy is exhausted.
The utility model adopts the technical proposal that: an integrated backup power unit for a locomotive integrated wireless communication device, comprising: the device comprises an input voltage detection circuit, an input current detection circuit, a super capacitor charging equalization circuit, a booster circuit, an output voltage detection circuit, an output current detection circuit and a control module; the circuit connection relation is as follows: the input voltage detection circuit, the input current detection circuit, the super capacitor charging circuit, the booster circuit, the output current detection circuit and the output voltage detection circuit are sequentially connected, the super capacitor charging equalization circuit and the booster circuit are respectively connected with the super capacitor to be charged, and the input voltage detection circuit, the input current detection circuit, the output current detection circuit and the output voltage detection circuit are respectively connected with the control module through the ADC interface and the control interface.
The utility model discloses a power supply unit adopts the model to be LTC3350 power management chip, LTC3350 power management chip has integrateed a super capacitor charge controller of super capacitor charging circuit, boost circuit's a boost controller and super capacitor charge equalizer circuit, super capacitor charging circuit still adopts the first MOS pipe and the model of model for NTMFS4C024NT1G to be IHLP5050FDER2R2M 01's inductance, super capacitor boost circuit adopts the second MOS pipe and the model of model for NTMFS4C024NT1G to be LP5050FDER2R2M 01's inductance, control module adopts the model to be LPC 4337's MCU, input voltage detection circuit adopts first partial pressure resistance group, input current detection circuit adopts the model to be the first differential amplifier of ADM 7 and first milliohm resistance, output voltage detection circuit adopts the second partial pressure resistance group, output current detection circuit adopts the model to be ADM4037 second differential amplifier and second milliohm resistance, super capacitor be four, model number is BCAP0360P 270S 18; the connection relationship is as follows: the LPC4337MCU is respectively connected with a center tap of a first voltage-dividing resistor group and an OUT port of a first differential amplifier ADM4037 through an ADC interface, an RS + end of the first differential amplifier ADM4037 is connected with one end of a first milliohm resistor, an RS-end is connected with the other end of the first milliohm resistor, the other end of the first milliohm resistor is respectively connected with a D pole of a first MOS tube NTMFS4C024NT1G and one end of a second milliohm resistor, the super capacitor charging controller is connected with a G pole of the first MOS tube NTMFS4C024NT1G, the boosting controller is connected with a G pole of a second MOS tube NTMFS4C024NT1G, the S pole of the first MOS tube NTS 4C024NT1G and the D pole of the second MOS tube NTMFS4C024NT1G are simultaneously connected with one end of an inductor LP5050FDER2R2M01, the IHMCU 4337 is connected with an LTC3350 power supply management through an I2 interface, the LPC 4350 MCU is connected with the other end of the second mCP 4037 through an ADC interface, and the other end of the second mRS + terminal of the second mRS 4037 is respectively connected with the second milliohm resistor, the four super capacitors are sequentially connected in series, the positive electrode of the super capacitor after series connection is connected with the other end of the inductor IHLP5050FDER2R2M01, the negative electrode of the super capacitor is grounded, and the super capacitor charging equalization circuit is respectively connected with the four super capacitors through IO interfaces.
The utility model has the advantages that: the power supply unit has the functions of input under-voltage and over-voltage protection, input current and voltage detection, super capacitor overcharge protection, output over-voltage protection and output current and voltage detection, can realize that input voltage directly supplies power for a later stage, and when the input voltage does not meet the requirement, the super capacitor can immediately supply power for the later stage circuit until the energy is exhausted. The functional requirement of the equipment on the backup power supply is met, the super capacitor does not need to be maintained, the service temperature range is wide, the maintenance cost of the equipment by using personnel is reduced, and the reliability of the equipment is improved.
Drawings
FIG. 1 is a schematic diagram of the connection of the present invention;
FIG. 2 is a schematic circuit diagram of the present invention;
fig. 3 is the utility model discloses super capacitor charge equalization circuit is connected the schematic diagram with super capacitor.
Detailed Description
For a clearer understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, 2, and 3, the power supply unit includes an input voltage detection circuit, an input current detection circuit, a super capacitor charging equalization circuit, a booster circuit, an output voltage detection circuit, an output current detection circuit, and a control module.
The functions of the components are as follows:
1) and an input voltage detection circuit: the voltage divider is composed of a first voltage dividing resistor group and an ADC (analog to digital converter) interface of a control module MCU (model LPC 4337), after voltage is divided by the first voltage dividing resistor group, a center tap of the first voltage dividing resistor group is collected by the ADC interface of the MCU, and finally, a voltage value is obtained through calculation.
2) And an input current detection circuit: the current value is calculated after the OUT interface of the first differential amplifier (the model is ADM 4073) is collected through the ADC interface of the MCU.
3) The super capacitor charging circuit comprises: a voltage reduction circuit is formed by a super capacitor charging controller, a first MOS tube (type is NTMFS4C024NT 1G), an inductor (type is IHLP5050FDER2R2M 01), a capacitor and the like in a power management chip (type is LTC 3350), and the constant-current and constant-voltage charging function can be realized;
4) and the super capacitor charging equalization circuit: the power management chip is composed of a power management chip LTC3350 internal resistor and an MOS (metal oxide semiconductor) tube, the power management chip detects the voltage of each super capacitor through a control interface according to the connection mode of a figure 3, if the voltage of a certain super capacitor is overlarge, the internal MOS tube is controlled to be opened, and the voltage of each super capacitor is balanced through resistor discharge.
5) And a booster circuit: the voltage boosting circuit comprises a power management chip internal boosting controller, a second MOS (with the model of NTMFS4C024NT 1G), an inductor (with the model of IHLP5050FDER2R2M 01), a capacitor and other devices, and the voltage boosting circuit boosts the series voltage of the super-electrode capacitor to an output voltage value set by the circuit.
6) And an output voltage detection circuit: the voltage is divided by the second voltage dividing resistor group, the central tap of the second voltage dividing resistor group is collected by the ADC interface of the MCU, and finally the voltage value is obtained through calculation.
7) And an output current detection circuit: the current value is calculated after the OUT interface of the second differential amplifier (the type is ADM 4073) is collected through the ADC interface of the MCU.
8) And a control module: the MCU and the peripheral circuit thereof realize the control and data processing of each detection circuit and the data exchange with the power management chip.
The input voltage detection circuit, the input current detection circuit, the super capacitor charging circuit, the booster circuit, the output current detection circuit and the output voltage detection circuit are sequentially connected, the super capacitor charging equalization circuit and the booster circuit are respectively connected with the super capacitor to be charged, and the input voltage detection circuit, the input current detection circuit, the output current detection circuit and the output voltage detection circuit are respectively connected with the control module through an ADC interface and a control interface, as shown in FIG. 1.
As shown in fig. 2, the power supply unit employs a power supply management chip of type LTC3350, the power supply management chip of type LTC3350 integrates a super capacitor charge controller of the super capacitor charge circuit, a boost controller of the boost circuit, and a super capacitor charge equalization circuit, the super capacitor charge circuit further employs a first MOS transistor of type NTMFS4C024NT1G and an inductor of type IHLP5050FDER2R2M01, the super capacitor boost circuit employs a second MOS transistor of type NTMFS4C024NT1G and an inductor of type IHLP5050FDER2R2M01, the control module employs an MCU of type LPC4337, the input voltage detection circuit employs a first divider resistor set, the input current detection circuit employs a first differential amplifier of type ADM 7 and a first milliohm resistor, the output voltage detection circuit employs a second divider resistor set, the output current detection circuit employs a second differential amplifier of type ADM4037 and a second milliohm resistor, the super capacitor is four, model number is BCAP0360P 270S 18; the connection relationship is as follows: the LPC4337MCU is respectively connected with a center tap of a first voltage-dividing resistor group and an OUT port of a first differential amplifier ADM4037 through an ADC interface, an RS + end of the first differential amplifier ADM4037 is connected with one end of a first milliohm resistor, an RS-end is connected with the other end of the first milliohm resistor, the other end of the first milliohm resistor is respectively connected with a D pole of a first MOS tube NTMFS4C024NT1G and one end of a second milliohm resistor, the super capacitor charging controller is connected with a G pole of the first MOS tube NTMFS4C024NT1G, the boosting controller is connected with a G pole of a second MOS tube NTMFS4C024NT1G, the S pole of the first MOS tube NTS 4C024NT1G and the D pole of the second MOS tube NTMFS4C024NT1G are simultaneously connected with one end of an inductor LP5050FDER2R2M01, the IHMCU 4337 is connected with an LTC3350 power supply management through an I2 interface, the LPC 4350 MCU is connected with the other end of the second mCP 4037 through an ADC interface, and the other end of the second mRS + terminal of the second mRS 4037 is respectively connected with the second milliohm resistor, the four super capacitors are sequentially connected in series, the positive electrode of the super capacitor after series connection is connected with the other end of the inductor IHLP5050FDER2R2M01, the negative electrode of the super capacitor is grounded, and the super capacitor charging equalization circuit is respectively connected with the four super capacitors through IO interfaces.
The utility model discloses a theory of operation is: firstly, input voltage enters a post-stage circuit through a voltage detection circuit and a current detection circuit, wherein the input voltage detection circuit consists of a first divider resistor group and an ADC (analog to digital converter) interface inside an MCU (micro controller unit), the input current detection circuit consists of a first milliohm resistor, a first differential amplifier and the ADC interface inside the MCU, and the MCU of a control module acquires input voltage and current data through the ADC interface; then the input voltage is divided into two paths, one path is supplied to a charging circuit which is formed by a first MOS (metal oxide semiconductor) tube and an inductor and controlled by a super capacitor charging controller in a power management chip, the circuit starts to charge, the charging voltage of each super capacitor is controlled by a super capacitor charging equalization circuit in the charging process, and at most four super capacitors are controlled simultaneously; the other path of the power supply is directly supplied to a post-stage circuit after passing through an output current detection circuit and an output voltage detection circuit, wherein the output voltage detection circuit consists of a second voltage division resistor group and an ADC (analog to digital converter) interface inside the MCU, the output current detection circuit consists of a second milliohm resistor, a second differential amplifier and the ADC interface inside the MCU, and the control module MCU acquires output voltage and current data through the ADC interface; when the input voltage is abnormal, the super capacitor controls a booster circuit formed by the second MOS tube, the inductor and other external devices to supply power to the rear-stage circuit through the boost controller in the power management chip, so that the purpose that the super capacitor is used as an energy storage core to serve as a backup power source is achieved, and finally, the MCU of the control module exchanges data with the power management chip through the I2C interface.
Claims (2)
1. An integrated backup power unit for a locomotive integrated wireless communication device, comprising: the device comprises an input voltage detection circuit, an input current detection circuit, a super capacitor charging equalization circuit, a booster circuit, an output voltage detection circuit, an output current detection circuit and a control module; the circuit connection relation is as follows: the input voltage detection circuit, the input current detection circuit, the super capacitor charging circuit, the booster circuit, the output current detection circuit and the output voltage detection circuit are sequentially connected, the super capacitor charging equalization circuit and the booster circuit are respectively connected with the super capacitor to be charged, and the input voltage detection circuit, the input current detection circuit, the output current detection circuit and the output voltage detection circuit are respectively connected with the control module through the ADC interface and the control interface.
2. The integrated backup power unit for a locomotive integrated wireless communication device of claim 1, wherein: the power supply unit adopts a model LTC3350 power supply management chip, the LTC3350 power supply management chip integrates a super capacitor charging controller of a super capacitor charging circuit, a boost controller of the boost circuit and a super capacitor charging equalization circuit, the super capacitor charging circuit also adopts a first MOS tube with a model NTMFS4C024NT1G and an inductor with a model IHLP5050FDER2R2M01, the super capacitor boost circuit adopts a second MOS tube with a model NTMFS4C024NT1G and an inductor with a model IHLP5050FDER2R2M01, the control module adopts a MCU with a model LPC4337, the input voltage detection circuit adopts a first voltage division resistor group, the input current detection circuit adopts a first difference amplifier with a model ADM4037 and a first milliohm resistor, the output voltage detection circuit adopts a second voltage division resistor group, the output current detection circuit adopts a second difference amplifier with a model ADM4037 and a second milliohm resistor, the number of the super capacitors is four, and the super capacitors are BCAP0360P 270S 18; the connection relationship is as follows: the LPC4337MCU is respectively connected with a center tap of a first voltage-dividing resistor group and an OUT port of a first differential amplifier ADM4037 through an ADC interface, an RS + end of the first differential amplifier ADM4037 is connected with one end of a first milliohm resistor, an RS-end is connected with the other end of the first milliohm resistor, the other end of the first milliohm resistor is respectively connected with a D pole of a first MOS tube NTMFS4C024NT1G and one end of a second milliohm resistor, the super capacitor charging controller is connected with a G pole of the first MOS tube NTMFS4C024NT1G, the boosting controller is connected with a G pole of a second MOS tube NTMFS4C024NT1G, the S pole of the first MOS tube NTS 4C024NT1G and the D pole of the second MOS tube NTMFS4C024NT1G are simultaneously connected with one end of an inductor LP5050FDER2R2M01, the IHMCU 4337 is connected with an LTC3350 power supply management through an I2 interface, the LPC 4350 MCU is connected with the other end of the second mCP 4037 through an ADC interface, and the other end of the second mRS + terminal of the second mRS 4037 is respectively connected with the second milliohm resistor, the four super capacitors are sequentially connected in series, the positive electrode of the super capacitor after series connection is connected with the other end of the inductor IHLP5050FDER2R2M01, the negative electrode of the super capacitor is grounded, and the super capacitor charging equalization circuit is respectively connected with the four super capacitors through IO interfaces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921821589.6U CN210744821U (en) | 2019-10-28 | 2019-10-28 | Integrated backup power supply unit for locomotive integrated wireless communication equipment |
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| CN201921821589.6U CN210744821U (en) | 2019-10-28 | 2019-10-28 | Integrated backup power supply unit for locomotive integrated wireless communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649701A (en) * | 2019-10-28 | 2020-01-03 | 天津七一二通信广播股份有限公司 | Integrated backup power supply unit with super capacitor as energy storage core and implementation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649701A (en) * | 2019-10-28 | 2020-01-03 | 天津七一二通信广播股份有限公司 | Integrated backup power supply unit with super capacitor as energy storage core and implementation method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210702 Address after: 300140 No. 185, new great road, Tianjin, Hebei District Patentee after: TIANJIN 712 MOBILE COMMUNICATIONS Co.,Ltd. Address before: 300462 Tianjin Binhai New Area Economic and Technological Development Zone West District North Street 141 Patentee before: TIANJIN 712 COMMUNICATION & BROADCASTING Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300140 No. 185, new great road, Tianjin, Hebei District Patentee after: Tianjin 712 Mobile Communication Co.,Ltd. Country or region after: China Address before: 300140 No. 185, new great road, Tianjin, Hebei District Patentee before: TIANJIN 712 MOBILE COMMUNICATIONS Co.,Ltd. Country or region before: China |