CN214479715U - Automatic switching control circuit - Google Patents
Automatic switching control circuit Download PDFInfo
- Publication number
- CN214479715U CN214479715U CN202120454910.2U CN202120454910U CN214479715U CN 214479715 U CN214479715 U CN 214479715U CN 202120454910 U CN202120454910 U CN 202120454910U CN 214479715 U CN214479715 U CN 214479715U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistor
- relay
- battery
- control circuit
- 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
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an automatic switching control circuit, include: the battery charging system comprises a battery charging module, a power conversion module, a PWM control module, an optocoupler U1, a resistor R1, a triode Q1, a resistor R2, a battery voltage sampling level, an activation indicator lamp, a triode Q2, a resistor R3, a capacitor C1, a resistor R4, a capacitor C2, a triode Q3, a resistor R5, a relay K1, a resistor R5 and a relay K2.
Description
Technical Field
The utility model belongs to the technical field of the electrical technology and specifically relates to an automatic switching control circuit is related to.
Background
The terminal automation equipment (DTU) of a station needs three remote functions to carry out charge and discharge management on a DTU battery, a switching power supply with a charging function and a battery is applied to the DTU battery, after a 10KV switch cabinet is installed on site, due to the environment of high voltage and the structural particularity, part of the DTU battery cannot be manually operated to start the charge and discharge of the battery, under the circuit, the control circuit is powered through an internal circuit when the battery is connected, after the battery is reduced to a certain voltage, the battery is not discharged, the DTU battery is converted into alternating current power supply again, the activation effect of the battery is achieved, and the service life of the battery is prolonged. Most of power supplies in the current market can only realize the functions of charging and discharging the battery, but cannot realize the activation function of the battery, and the battery is in a floating charge state for a long time, so that the passivation of the electrode of the battery is easily caused, and the service life is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic switch-over control circuit aims at solving the above-mentioned problem among the prior art.
The utility model provides an automatic switching control circuit for station terminal backup power battery activation drops into and withdraws from, the circuit specifically includes:
the battery charging module is connected with the positive electrode and the negative electrode of the battery; a power conversion module connected to the battery charging module; the power conversion module is connected with the power conversion module, one end of the optical coupler U1 is connected with the PWM control module, the other end of the optical coupler U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the anode of a battery, the other end of the optical coupler U1 is also connected with the collector of a triode Q1, the base of the triode Q1 is connected with a resistor R2, and the resistor R2 is connected with the sampling level of the battery voltage; the emitter of the triode Q1 is connected with one end of an activation indicator light, and the other end of the activation indicator light is connected with the emitter of the triode Q2;
the resistor R3 and the capacitor C1 are connected with the emitter and the base of the triode Q2 in parallel; the resistor R4 and the capacitor C2 are connected with the emitter and the base of the triode Q3 in parallel; the collector of the triode Q2 is connected with the base of the triode Q3, and the collector of the triode Q3 is connected with the base of the triode Q2; the base electrode of the triode Q2 is also connected with one end of a resistor R5;
the relay K1 is respectively connected with the other end of the resistor R5 and the emitter of the triode Q3, the relay K2 is respectively connected with the collector of the triode Q2 and the emitter of the Q3, and the relay K1 and the relay K2 are in power supply connection with the CPU.
Adopt the embodiment of the utility model provides a, can realize the distal end activation, extension battery life.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an automatic switching control circuit according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the utility model discloses the embodiment provides an automatic switching control circuit for station terminal backup power battery activation drops into and withdraws from, and fig. 1 is the utility model discloses an automatic switching control circuit's schematic diagram, as shown in fig. 1, according to the utility model discloses an automatic switching control circuit specifically includes:
the battery charging module is connected with the positive electrode and the negative electrode of the battery; a power conversion module connected to the battery charging module; the power conversion module is connected with the power conversion module, one end of the optical coupler U1 is connected with the PWM control module, the other end of the optical coupler U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the anode of a battery, the other end of the optical coupler U1 is also connected with the collector of a triode Q1, the base of the triode Q1 is connected with a resistor R2, and the resistor R2 is connected with the sampling level of the battery voltage; the emitter of the triode Q1 is connected with one end of an activation indicator light, and the other end of the activation indicator light is connected with the emitter of the triode Q2;
the resistor R3 and the capacitor C1 are connected with the emitter and the base of the triode Q2 in parallel; the resistor R4 and the capacitor C2 are connected with the emitter and the base of the triode Q3 in parallel; the collector of the triode Q2 is connected with the base of the triode Q3, and the collector of the triode Q3 is connected with the base of the triode Q2; the base electrode of the triode Q2 is also connected with one end of a resistor R5;
the relay K1 is respectively connected with the other end of the resistor R5 and the emitter of the triode Q3, the relay K2 is respectively connected with the collector of the triode Q2 and the emitter of the Q3, and the relay K1 and the relay K2 are in power supply connection with the CPU.
In the embodiment of the present invention, the optocoupler U1 includes a diode and a triode connected, and its model is PC 817B. The activation indicating lamp is an LED activation indicating lamp. The model of the triode Q1 and the model of the triode Q3 are MBT 5551. The model of the triode Q2 is MBT 5401. The types of the relay K1 and the relay K2 are as follows: TX 2-12V. The relay K1 and the relay K2 receive 12V power supply of the CPU.
The circuit operation principle of the embodiment of the present invention is explained in detail below.
As shown in figure 1, the positive pole of the battery supplies power to the optocoupler U1 through R1, a battery voltage sampling signal is supplied to the base of the Q1 through R2, and when the battery voltage is higher than an activation voltage value, the sampling level is high level. The relay K1 is powered by CPU for 12V when remote control activation is started, the relay is changed from open to closed (the closing time is 5S), the base level of Q2 is pulled down through a resistor R5, current passes through R3, and Q2 is conducted. At this time, the battery current passes through the R1U 1Q 1 LED 1Q 2 to the base of Q3, and Q3 is turned on by the filtering action of R4C 2. After the Q3 is turned on, the base of the Q2 is always at a low level, and the Q2 and the Q3 are always in a conducting state. The light emitting diode of U1 has current flowing through it, the phototransistor of U1 is turned on, the PWM control turns off the power conversion output signal, the battery charging is turned off, and battery activation begins. When the battery voltage is lower than the activation voltage value, the battery voltage sampling level is changed to be low level, Q1 is cut off, no current flows through the light emitting diode of U1, the light sensitive transistor of U1 is cut off, the PWM control gives normal output signals of the power conversion, and the battery charging part can charge the battery. If the activation is not needed, the relay K2 can be activated and shut off by remote control, and the power supply for the relay K2 by the CPU is shut off, and the relay is normally used
The switch is turned on (the closing time is 5S), the voltage of the base of the Q3 is pulled low (lower than 0.7V), the Q3 is turned off, the base level of the Q2 is high due to the fact that the Q3 is turned off, the Q2 is turned off, no current flows through the light emitting diode of the U1, the photosensitive transistor of the U1 is turned off, the PWM control gives a normal power conversion output signal, and the battery charging part can charge the battery.
To sum up, the embodiment of the utility model provides a realize the distal end activation to the battery through above circuit, prolonged the life of battery.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. An automatic switching control circuit is used for activating and switching on and switching off a backup power supply battery of a station terminal, and specifically comprises:
the battery charging module is connected with the positive electrode and the negative electrode of the battery; a power conversion module connected to the battery charging module; the power conversion module is connected with the power conversion module, one end of the optical coupler U1 is connected with the PWM control module, the other end of the optical coupler U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the anode of a battery, the other end of the optical coupler U1 is also connected with the collector of a triode Q1, the base of the triode Q1 is connected with a resistor R2, and the resistor R2 is connected with the sampling level of the battery voltage; the emitter of the triode Q1 is connected with one end of an activation indicator light, and the other end of the activation indicator light is connected with the emitter of the triode Q2;
the resistor R3 and the capacitor C1 are connected with the emitter and the base of the triode Q2 in parallel; the resistor R4 and the capacitor C2 are connected with the emitter and the base of the triode Q3 in parallel; the collector of the triode Q2 is connected with the base of the triode Q3, and the collector of the triode Q3 is connected with the base of the triode Q2; the base electrode of the triode Q2 is also connected with one end of a resistor R5;
the relay K1 is respectively connected with the other end of the resistor R5 and the emitter of the triode Q3, the relay K2 is respectively connected with the collector of the triode Q2 and the emitter of the Q3, and the relay K1 and the relay K2 are in power supply connection with the CPU.
2. The automatic switching control circuit of claim 1, wherein the optocoupler U1 includes a diode and a transistor connected.
3. The automatic switching control circuit of claim 1 wherein the activation indicator is an LED activation indicator.
4. The automatic switching control circuit of claim 1, wherein the optocoupler U1 is of type PC 817B.
5. The automatic switching control circuit of claim 1, wherein the transistor Q1 and the transistor Q3 are of the type MBT 5551.
6. The automatic switching control circuit of claim 1 wherein the transistor Q2 is of type MBT 5401.
7. The automatic switching control circuit of claim 1, wherein the relay K1 and the relay K2 are of the type: TX 2-12V.
8. The automatic switching control circuit of claim 1, wherein the relay K1 and the relay K2 receive 12V power from the CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120454910.2U CN214479715U (en) | 2021-03-03 | 2021-03-03 | Automatic switching control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120454910.2U CN214479715U (en) | 2021-03-03 | 2021-03-03 | Automatic switching control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214479715U true CN214479715U (en) | 2021-10-22 |
Family
ID=78152131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120454910.2U Active CN214479715U (en) | 2021-03-03 | 2021-03-03 | Automatic switching control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214479715U (en) |
-
2021
- 2021-03-03 CN CN202120454910.2U patent/CN214479715U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103427821B (en) | Power management device realizing zero standby current | |
| CN110783986A (en) | Power supply circuit and portable power source | |
| CN213817258U (en) | Power supply protection circuit for street lamp control circuit | |
| WO2021258367A1 (en) | Control circuit, battery management system, and electrochemical device | |
| CN214479715U (en) | Automatic switching control circuit | |
| WO2021258366A1 (en) | Control circuit, battery management system and electrochemical device | |
| CN214255774U (en) | Battery charging dormancy control circuit | |
| CN208353060U (en) | A kind of battery and power supply adaptor supply power with double circuit switching circuit | |
| CN201904633U (en) | MPPT type solar charge controller based on PSoC | |
| CN209028452U (en) | A kind of remote sensing monitoring control circuit | |
| CN100539349C (en) | Lithium battery power supply control protection circuit and control guard method | |
| CN209982166U (en) | Power supply circuit of high-efficiency metering instrument | |
| CN108832700B (en) | Wake-up and dormancy circuit of Hall switch | |
| CN212726497U (en) | Standby power supply circuit of electric energy meter | |
| CN220673418U (en) | Battery unit protection circuit and battery package management circuit | |
| CN213847095U (en) | Dormancy circuit and lighting device | |
| CN213585222U (en) | Double-battery low-power-consumption controller circuit | |
| CN214707216U (en) | Lead-acid battery charging control indicating circuit | |
| CN220732404U (en) | Power supply control circuit | |
| CN214227941U (en) | Power supply power-down maintaining and detecting circuit | |
| CN214479796U (en) | FSU (frequency selective Unit) intelligent standby power module of base station | |
| CN216668896U (en) | Pressure type water level gauge capable of automatically switching internal and external power supplies | |
| CN214663818U (en) | Combined lighting equipment convenient to assemble and disassemble | |
| CN218335382U (en) | Switch circuit, BMS system and electronic equipment | |
| CN219039232U (en) | Key signal detection circuit and mobile lighting equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |