CN110620506A - Analog disk input voltage conversion circuit for railway signal track circuit analog box - Google Patents
Analog disk input voltage conversion circuit for railway signal track circuit analog box Download PDFInfo
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- CN110620506A CN110620506A CN201810629646.4A CN201810629646A CN110620506A CN 110620506 A CN110620506 A CN 110620506A CN 201810629646 A CN201810629646 A CN 201810629646A CN 110620506 A CN110620506 A CN 110620506A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an input voltage conversion circuit of a simulation panel for a railway signal track circuit simulation box, which comprises a circuit board, an input voltage conversion circuit and a voltage stabilizing circuit, wherein components on the voltage conversion circuit and the voltage stabilizing circuit are arranged on the same circuit board, the circuit board is provided with an inductor L1, one end of the inductor L1 is connected with one end of a capacitor C1, the other end of the inductor L1 is respectively connected with one end of a capacitor C3, one end of a capacitor C5, one end of a resistor R1 and a second pin of a field-effect tube Q1, and the other end of the resistor R1 is respectively connected with a first pin of a field-effect tube Q1, a negative electrode of a voltage-stabilizing diode D1 and one end of a capacitor C7. The analog disk input voltage conversion circuit for the railway signal track circuit analog box is simple in circuit structure, low in dissipation power of input voltage in the conversion process, and more stable in output voltage after conversion, and is beneficial to ensuring stable operation of the input voltage conversion circuit.
Description
Technical Field
The invention relates to the field of railway signal track circuit simulation boxes, in particular to an analog disk input voltage conversion circuit for a railway signal track circuit simulation box.
Background
In recent years, with the continuous speed increase of China railways and the large-scale construction of passenger dedicated lines and heavy-duty railways, railway companies have raised higher requirements on construction period, construction quality, construction process and the like of design houses and participating units. In order to ensure that the interlocking relation of the signal equipment is correct, the signal equipment needs to be subjected to a simulation test before the signal equipment is switched on, and for the test of a track circuit, no specific test equipment exists in the prior art, and a twist switch is arranged on a three-ply board and temporarily pulled to perform the simulation test when each station is switched on. The experiment is also generally simulated by using a railway signal track circuit simulation box, in the simulation disk of the railway signal track circuit simulation box, since the required voltage, frequency and signal type (analog signal or digital signal) of the circuit on each simulation disk may be different, the circuit voltage on the simulation disk needs to be converted, and the input voltage is generally converted from 220V to 110V. LM317L and LM337L are one of the most widely used power supply integrated circuits, and not only have the simplest form of fixed three-terminal voltage regulator circuit, but also have the characteristic of adjustable output voltage. LM317L is adjustable 3 end positive voltage regulator, and LM317L is adjustable 3 end negative voltage regulator, and in addition, they still have the voltage regulation wide range, steady voltage performance is good, low noise, ripple rejection ratio advantage such as high.
However, in the prior art, the dissipation power of the input voltage in the conversion process is high, the voltage output after conversion is unstable, and finally the input voltage conversion circuit cannot work with the normal and stable output voltage.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an analog disk input voltage conversion circuit for a railway signal track circuit analog box.
The invention provides an input voltage conversion circuit of an analog disk for a railway signal track circuit analog box, which comprises a circuit board, an input voltage conversion circuit and a voltage stabilizing circuit, wherein components on the voltage conversion circuit and the voltage stabilizing circuit are arranged on the same circuit board, an inductor L1 is arranged on the circuit board, one end of the inductor L1 is connected with one end of a capacitor C1, the other end of the inductor L1 is respectively connected with one end of a capacitor C3, one end of a capacitor C5, one end of a resistor R1 and a second pin of a field-effect tube Q1, the other end of the resistor R1 is respectively connected with a first pin of the field-effect tube Q1, the cathode of a voltage-stabilizing diode D1 and one end of the capacitor C7, the anode of the voltage-stabilizing diode D1 is connected with a third pin of the field-effect tube Q1, the third pin of the field-effect tube Q1 is also respectively connected with the cathode of a voltage-stabilizing diode D2 and the third, a first pin of the voltage-stabilizing transistor U1 is connected with a cathode of a diode D3 and an anode of a diode D4 respectively, a second pin of the voltage-stabilizing transistor U1 is connected with one end of a resistor R5, a cathode of a diode D4 and one end of a capacitor C9 respectively, the other end of the capacitor C5 is connected with a second pin of the voltage-stabilizing transistor U1, the other end of the capacitor C7 is connected with a second pin of the voltage-stabilizing transistor U1, the other end of the capacitor C1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of an inductor L2, the other end of the inductor L2 is connected with one end of a capacitor C4, an anode of a voltage-stabilizing diode D5, one end of a resistor R2, a third pin of a field effect transistor Q2, one end of a resistor R3 and an anode of a diode D6 respectively, the other end of a resistor R3 is connected with a first pin of a triode Q3 and an anode of a, the cathode of the zener diode D5 is further connected to a first pin of the fet Q2, a second pin of the transistor Q3, and one end of the resistor R2 away from the inductor L2, the second pin of the fet Q2 is connected to a third pin of the transistor Q3, a second pin of the integrated regulator U2, and one end of the capacitor C6, respectively, and the specific model of the transistor Q28 is MMMBTA9, the other end of the capacitor C6 is connected to the anode of the zener diode D2, the first pin of the integrated regulator U2 is connected to one end of the capacitor C6327 and the cathode of the diode D8, the third pin of the integrated regulator U2 is connected to one end of the resistor R4, the anode of the diode D8, the cathode of the zener diode D8, the cathode of the diode D8, and one end of the capacitor C8, the other end of the resistor R8 is connected to one end of the second pin of the zener transistor U8, and the other end of the capacitor R8 is connected to one end of the capacitor C8, one end of the capacitor C4 far away from the inductor L2 is connected with the other end of the capacitor C3.
Preferably, the model of the voltage regulator transistor U1 is specifically LM317L, and the model of the integrated voltage regulator U2 is specifically LM 337L; the types of the field-effect tube Q1 and the field-effect tube Q2 are both IRF840 specifically; the diode D3, the diode D4, the diode D6 and the diode D8 are all IN 4007.
Preferably, the voltage values of the zener diode D1, the zener diode D2, the zener diode D5 and the zener diode D7 are all 15V.
Preferably, the ends of the resistor R4 and the resistor R5 close to each other are grounded through a lead.
Preferably, specific capacitance values of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, the capacitor C8 and the capacitor C9 are 100nF, 220uF, 100nF, 10uF, 47uF and 220uF respectively.
Preferably, the specific resistances of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 22k Ω, 10k Ω, 5.6k Ω, 330 Ω and 39.2k Ω, respectively.
Preferably, the inductance value of the inductor L1 is specifically 10uH, and the inductance value of the inductor L2 is specifically 15 uH.
Preferably, the zener transistor U1, the integrated regulator U2, the zener diode D2, the diode D3, the diode D4, the diode D8, the resistor R4, the resistor R5, the capacitor C6 and the capacitor C8 are all electronic components on a voltage regulator circuit.
The invention has the beneficial effects that:
in the process of converting the input voltage, the input voltage is converted by a voltage stabilizing circuit consisting of a voltage stabilizing transistor U1, an integrated voltage stabilizer U2, a voltage stabilizing diode D2, a diode D3, a diode D4, a diode D8, a resistor R4, a resistor R5, a capacitor C6 and a capacitor C8, the voltage stabilizing transistor U1 and the integrated voltage stabilizer U2 on the voltage stabilizing circuit, namely two chips of a voltage stabilizing transistor LM317L and an integrated voltage stabilizer LM337L are utilized, when the input voltage of the whole circuit is converted, the input voltage +/-220V is respectively reduced to +/-185V, then to +/-135V and finally to +/-110V, the characteristic of the voltage stabilizing function of the voltage stabilizing transistor LM317L and the integrated voltage stabilizer LM337L is utilized, the dissipated power of the input voltage converting circuit can be shared, the heating is reduced, and the output voltage is more stable, the analog disk input voltage converting circuit for the railway signal track circuit analog box has simple circuit structure, the input voltage has low dissipation power in the conversion process, and the converted output voltage is more stable, thereby being beneficial to ensuring the stable work of the input voltage conversion circuit.
Drawings
FIG. 1 is an overall circuit schematic of the present invention;
FIG. 2 is a schematic diagram of an input voltage converting circuit according to the present invention;
FIG. 3 is a schematic diagram of a voltage regulator circuit according to the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1-3, the present embodiment provides an input voltage converting circuit of an analog board for a railway signal track circuit analog box, including a circuit board, an input voltage converting circuit and a voltage stabilizing circuit, where the voltage converting circuit and the components on the voltage stabilizing circuit are all arranged on the same circuit board, the circuit board is provided with an inductor L1, one end of the inductor L1 is connected to one end of a capacitor C1, the other end of the inductor L1 is connected to one end of a capacitor C3, one end of a capacitor C5, one end of a resistor R1, and a second pin of a fet Q1, the other end of the resistor R1 is connected to a first pin of a fet Q1, a cathode of a zener diode D1, and one end of a capacitor C7, an anode of the zener diode D1 is connected to a third pin of a fet Q1, the third pin of the fet Q1 is connected to a cathode of a zener diode D2 and a third pin of a zener transistor U1, a first pin of the zener transistor U1 is connected to a cathode of the diode D3 and an anode of the diode D4, a second pin of the zener transistor U1 is connected to one end of the resistor R5, a cathode of the diode D4 and one end of the capacitor C9, respectively, the other end of the capacitor C5 is connected to a second pin of the zener transistor U1, the other end of the capacitor C7 is connected to a second pin of the zener transistor U1, the other end of the capacitor C1 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C4, an anode of the zener diode D5, one end of the resistor R2, a third pin of the fet Q2, one end of the resistor R2 and an anode of the diode D2, respectively, the other end of the resistor R2 is connected to a first pin of the triode Q2 and an anode of the zener diode D2, and a cathode of the fet 2 are connected to a cathode of the fet 2, A second pin of the transistor Q3 and one end of the resistor R2 away from the inductor L2 are connected, a second pin of the fet Q2 is connected to a third pin of the transistor Q3, a second pin of the integrated regulator U2 and one end of the capacitor C6, respectively, a specific model of the transistor Q3 is MMMBTA92, the other end of the capacitor C6 is connected to an anode of the zener diode D2, a first pin of the integrated regulator U2 is connected to one end of the capacitor C8 and a cathode of the diode D8, a third pin of the integrated regulator U2 is connected to one end of the resistor R4, an anode of the diode D4, a cathode of the zener diode D4, a cathode of the diode D4 and one end of the capacitor C4, the other end of the resistor R4 away from the second pin of the zener diode U4 is connected to the other end of the capacitor C4, the input voltage conversion circuit of the analog disk for the railway signal track circuit analog box is simple in circuit structure, low in dissipation power of input voltage in the conversion process, and more stable in output voltage after conversion, and is beneficial to ensuring stable operation of the input voltage conversion circuit.
The model of the voltage stabilizing transistor U1 is LM317L, and the model of the integrated voltage stabilizer U2 is LM 337L; the types of the field-effect tube Q1 and the field-effect tube Q2 are both IRF840 specifically; the types of the diode D3, the diode D4, the diode D6 and the diode D8 are all IN 4007; the voltage values of the voltage-stabilizing diode D1, the voltage-stabilizing diode D2, the voltage-stabilizing diode D5 and the voltage-stabilizing diode D7 are all 15V specifically; one ends of the resistor R4 and the resistor R5, which are close to each other, are grounded through a lead; the specific capacitance values of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, the capacitor C8 and the capacitor C9 are 100nF, 220uF, 100nF, 10uF, 47uF and 220uF respectively; the specific resistance values of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 22k omega, 10k omega, 5.6k omega, 330 omega and 39.2k omega respectively; the inductance value of the inductor L1 is specifically 10uH, and the inductance value of the inductor L2 is specifically 15 uH; the voltage stabilizing transistor U1, the integrated voltage stabilizer U2, the voltage stabilizing diode D2, the diode D3, the diode D4, the diode D8, the resistor R4, the resistor R5, the capacitor C6 and the capacitor C8 are all electronic components on a voltage stabilizing circuit.
In this embodiment, the input voltage 220V is converted to 110V, and when the input voltage is in the process of conversion, because the voltage stabilizing circuit is arranged, in the process of converting the input voltage, the input voltage is converted by the voltage stabilizing circuit consisting of the voltage stabilizing transistor U1, the integrated voltage stabilizer U2, the voltage stabilizing diode D2, the diode D3, the diode D4, the diode D8, the resistor R4, the resistor R5, the capacitor C6 and the capacitor C8, the voltage stabilizing transistor U1 on the voltage stabilizing circuit and the integrated voltage stabilizer U2, namely, by using two chips of the voltage stabilizing transistor LM317L and the integrated voltage stabilizer LM337L, when the input voltage of the whole circuit is converted, the input voltage +/-220V is respectively reduced to +/-185V, then the voltage is reduced to +/-135V and finally to +/-110V, meanwhile, the characteristic of voltage stabilization is achieved by utilizing the voltage stabilization transistor LM317L and the integrated voltage stabilizer LM337L, the power dissipation of the input voltage conversion circuit can be shared, the heat generation is reduced, and the output voltage is more stable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An input voltage conversion circuit of a simulation panel for a railway signal track circuit simulation box comprises a circuit board, an input voltage conversion circuit and a voltage stabilizing circuit, and is characterized in that components on the voltage conversion circuit and the voltage stabilizing circuit are arranged on the same circuit board, an inductor L1 is arranged on the circuit board, one end of the inductor L1 is connected with one end of a capacitor C1, the other end of the inductor L1 is respectively connected with one end of a capacitor C3, one end of a capacitor C5, one end of a resistor R1 and a second pin of a field-effect tube Q1, the other end of the resistor R1 is respectively connected with a first pin of a field-effect tube Q1, the cathode of a voltage-stabilizing diode D1 and one end of a capacitor C7, the anode of the voltage-stabilizing diode D1 is connected with a third pin of a field-effect tube Q1, the third pin of the field-effect tube Q1 is also respectively connected with the cathode of a voltage-stabilizing diode D2 and a third pin of a voltage, a first pin of the voltage-stabilizing transistor U1 is connected with a cathode of a diode D3 and an anode of a diode D4 respectively, a second pin of the voltage-stabilizing transistor U1 is connected with one end of a resistor R5, a cathode of a diode D4 and one end of a capacitor C9 respectively, the other end of the capacitor C5 is connected with a second pin of the voltage-stabilizing transistor U1, the other end of the capacitor C7 is connected with a second pin of the voltage-stabilizing transistor U1, the other end of the capacitor C1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of an inductor L2, the other end of the inductor L2 is connected with one end of a capacitor C4, an anode of a voltage-stabilizing diode D5, one end of a resistor R2, a third pin of a field effect transistor Q2, one end of a resistor R3 and an anode of a diode D6 respectively, the other end of a resistor R3 is connected with a first pin of a triode Q3 and an anode of a, the cathode of the zener diode D5 is further connected to a first pin of the fet Q2, a second pin of the transistor Q3, and one end of the resistor R2 away from the inductor L2, the second pin of the fet Q2 is connected to a third pin of the transistor Q3, a second pin of the integrated regulator U2, and one end of the capacitor C6, respectively, and the specific model of the transistor Q28 is MMMBTA9, the other end of the capacitor C6 is connected to the anode of the zener diode D2, the first pin of the integrated regulator U2 is connected to one end of the capacitor C6327 and the cathode of the diode D8, the third pin of the integrated regulator U2 is connected to one end of the resistor R4, the anode of the diode D8, the cathode of the zener diode D8, the cathode of the diode D8, and one end of the capacitor C8, the other end of the resistor R8 is connected to one end of the second pin of the zener transistor U8, and the other end of the capacitor R8 is connected to one end of the capacitor C8, one end of the capacitor C4 far away from the inductor L2 is connected with the other end of the capacitor C3.
2. The analog board input voltage conversion circuit for a railway signal track circuit analog box of claim 1, characterized in that said regulator transistor U1 is specifically of type LM317L, said integrated regulator U2 is specifically of type LM 337L; the types of the field-effect tube Q1 and the field-effect tube Q2 are both IRF840 specifically; the diode D3, the diode D4, the diode D6 and the diode D8 are all IN 4007.
3. The analog board input voltage converting circuit for a railway signal track circuit analog box of claim 1, wherein the voltage values of the zener diode D1, the zener diode D2, the zener diode D5 and the zener diode D7 are all 15V.
4. The analog board input voltage conversion circuit for a railway signal track circuit analog box of claim 1, wherein the ends of the resistor R4 and the resistor R5 close to each other are grounded through a wire.
5. The analog disk input voltage conversion circuit for the analog box of the railway signal track circuit as claimed in claim 1, wherein the specific capacitance values of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, the capacitor C8 and the capacitor C9 are 100nF, 220uF, 100nF, 10uF, 47uF and 220uF respectively.
6. The analog board input voltage conversion circuit for the railway signal track circuit analog box according to claim 1, wherein specific resistances of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 22k Ω, 10k Ω, 5.6k Ω, 330 Ω and 39.2k Ω, respectively.
7. The analog board input voltage conversion circuit for a railway signal track circuit analog box of claim 1, wherein the inductance value of the inductor L1 is specifically 10uH, and the inductance value of the inductor L2 is specifically 15 uH.
8. The analog board input voltage conversion circuit for the railway signal track circuit analog box of claim 1, wherein the voltage-stabilizing transistor U1, the integrated voltage stabilizer U2, the voltage-stabilizing diode D2, the diode D3, the diode D4, the diode D8, the resistor R4, the resistor R5, the capacitor C6 and the capacitor C8 are all electronic components on a voltage-stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629646.4A CN110620506A (en) | 2018-06-19 | 2018-06-19 | Analog disk input voltage conversion circuit for railway signal track circuit analog box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629646.4A CN110620506A (en) | 2018-06-19 | 2018-06-19 | Analog disk input voltage conversion circuit for railway signal track circuit analog box |
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| Publication Number | Publication Date |
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| CN110620506A true CN110620506A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810629646.4A Pending CN110620506A (en) | 2018-06-19 | 2018-06-19 | Analog disk input voltage conversion circuit for railway signal track circuit analog box |
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| CN (1) | CN110620506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857230A (en) * | 2020-08-11 | 2020-10-30 | 上海艾为电子技术股份有限公司 | Linear regulator and electronic device |
-
2018
- 2018-06-19 CN CN201810629646.4A patent/CN110620506A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857230A (en) * | 2020-08-11 | 2020-10-30 | 上海艾为电子技术股份有限公司 | Linear regulator and electronic device |
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Application publication date: 20191227 |
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