CN215991276U - Backup energy storage system breathing lamp control circuit - Google Patents
Backup energy storage system breathing lamp control circuit Download PDFInfo
- Publication number
- CN215991276U CN215991276U CN202122437674.6U CN202122437674U CN215991276U CN 215991276 U CN215991276 U CN 215991276U CN 202122437674 U CN202122437674 U CN 202122437674U CN 215991276 U CN215991276 U CN 215991276U
- Authority
- CN
- China
- Prior art keywords
- module
- resistor
- controlled switch
- output
- energy storage
- 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
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 37
- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- 230000010355 oscillation Effects 0.000 claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 43
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a backup energy storage system breathing lamp control circuit, which comprises a sampling module, a controlled switch, a vibration module and an LED module, wherein the sampling module is connected with the controlled switch; the input end of the sampling module is connected with the direct current output module, and the output end of the sampling module is connected with the control end of the controlled switch; the voltage acquisition module is used for acquiring the voltage of the DC output module of the backup energy storage system; the input end of the controlled switch is connected with the oscillation module, and the output end of the controlled switch is grounded; the sampling module is used for controlling the on-off of the sampling module and the oscillation module; the oscillation module is connected with the LED module; the direct current output voltage is converted into a square wave voltage signal when being established; the LED module is used for converting the square wave voltage signal output by the oscillation module into a triangular wave voltage signal and driving the light emitting diode to achieve the effect of a breathing lamp. The circuit is built in a pure analog mode, does not need external signal control, does not occupy MCU resources, and reduces the manufacturing cost.
Description
Technical Field
The utility model relates to a breathing lamp control circuit, which is particularly suitable for a backup energy storage system and belongs to the technical field of breathing lamps.
Background
The backup energy storage system, also called as a portable power supply system or a portable energy storage system, is a modern hot device, is deeply popular with people at home and abroad, and is often used in scenes such as tourism, emergency and the like. As shown in fig. 1, the backup energy storage system generally includes an ac output module, a dc output module, an energy storage module, an MCU module, an ac switch button and indicator light module, a dc switch button and indicator light module, and other modules. The device is provided with an AC main switch and a DC main switch, wherein the DC main switch is used for controlling the state of the DC output, and the AC main switch is used for controlling the state of the AC output. And the alternating current switch button and indicator light module and the direct current switch button indicator light module both comprise buttons with LED lamps, and the direct current output module and the alternating current output module are controlled by the button switches.
At present, in order to provide better physical examination for customers, when a power supply product is in a direct current or alternating current output use state, a buzzer, a screen display and an LED lamp are adopted to inform the customers of the state of the power supply product. In order to make the illumination of the LED lamp softer, a breathing lamp is generally used. The breathing lamp is a dynamic background light effect of which the light source slowly cycles from dark to light and from light to dark according to the breathing-like frequency under the control of a microcomputer. Since the breathing lamp can generate the dynamic and cool lighting effect, the breathing lamp is increasingly applied to various user terminal products with backlight or indicator lamps. However, in the prior art, the strength of the breathing lamp is generally controlled through the PWM port of the MCU module, or a dedicated breathing lamp driving chip is used, so that not only the pin resource of the MCU module is needed, but also the circuit is complex and the cost is high.
Therefore, a breath light control circuit suitable for a backup energy storage system is urgently needed to be developed and designed.
Disclosure of Invention
Aiming at the existing technical problems, the utility model provides a backup energy storage system breathing lamp control circuit to achieve the purpose of building an indication breathing lamp circuit only in a pure analog mode without occupying the resources of a microcontroller.
In order to achieve the aim, the utility model provides a backup energy storage system breathing lamp control circuit, which comprises a sampling module, a controlled switch, a vibration module and an LED module;
the input end of the sampling module is connected with the direct current output module, and the output end of the sampling module is connected with the control end of the controlled switch; the voltage acquisition module is used for acquiring the voltage of the DC output module of the backup energy storage system;
the input end of the controlled switch is connected with the oscillation module, and the output end of the controlled switch is grounded; the sampling module is used for controlling the on-off of the sampling module and the oscillation module;
the oscillation module is connected with the LED module; the direct current output voltage is converted into a square wave voltage signal when being established;
the LED module is used for converting the square wave voltage signal output by the oscillation module into a triangular wave voltage signal and driving the light emitting diode to achieve the effect of a breathing lamp.
Further, the sampling module comprises a resistor R1 and a resistor R2; the output end V1 of the DC output module is connected with the GND end through resistors R1 and R2, and the common end of the resistors R1 and R2 is connected with the control end of the controlled switch.
Further, the controlled switch adopts an MOS tube or a triode.
Furthermore, the controlled switch is an NMOS transistor Q1; the gate of the NMOS transistor Q1 is the control terminal of the controlled switch, the drain thereof is the input terminal of the controlled switch, and the source thereof is the output terminal of the controlled switch.
Further, the oscillation module comprises triodes Q2 and Q3, capacitors C1 and C2, and resistors R3, R4, R5 and R6;
the VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R3; the VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R5 and a capacitor C2; the base electrode of the triode Q3 is connected with the common end of the resistor R6 and the capacitor C1; the emitter of the triode Q3 is connected with the input end of the controlled switch;
the VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R6 and a capacitor C1; the VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R4; the base electrode of the triode Q2 is connected with the common end of the resistor R5 and the capacitor C2; the emitter of transistor Q2 is connected to the input of the controlled switch.
Further, the LED module comprises an operational amplifier U1, an operational amplifier U2, a light emitting diode D4, a capacitor C3, resistors R9, R12, R13 and R15;
the non-inverting input end of the operational amplifier U1 is connected with one end of a resistor R4 connected with a VCC end, the inverting input end is connected with one end of a resistor R4 connected with a capacitor C1, the inverting input end is connected with the output end, the positive power supply end is connected with the VCC end, the negative power supply end is grounded, and the output end is grounded through resistors R15 and R9;
the common end of the resistors R15 and R9 is connected with the non-inverting input end of the operational amplifier U2, and two ends of the capacitor C3 are connected with two ends of the resistor R9; the inverting input terminal of the operational amplifier U2 is grounded, and the inverting input terminal is connected to the output terminal through the resistor R13, the output terminal is connected to the cathode of the light emitting diode D4, and the anode of the light emitting diode D4 is connected to the GND terminal through the resistor R12.
Furthermore, the non-inverting input terminal of the operational amplifier U1 is connected to one terminal of the VCC terminal through a resistor R16 and a resistor R4.
Furthermore, the inverting input terminal of the operational amplifier U1 is connected to one end of the capacitor C1 through a resistor R17 and a resistor R4.
Furthermore, the non-inverting input terminal of the operational amplifier U2 is connected to the common terminal of the resistors R15 and R9 through the resistor R10.
Furthermore, the inverting input terminal of the operational amplifier U2 is connected to ground through a resistor R14.
To sum up, because the capacitors C1 and C2 of the oscillation module are in the continuous circulating charging and discharging state, the voltages at the two ends of the resistor R3 and the resistor R4 form a square wave, the LED module collects the voltages at the two ends of the resistor R4, and converts the voltages into power supply voltage through the operational amplifier U1 and the operational amplifier U2, and drives the light emitting diode to follow the change of the voltage waveform, so that the change from bright to dark and then from dark to bright is realized, and the effect of the breathing lamp is achieved.
Compared with the prior art, the utility model has the following technical advantages:
1. a circuit of the indicating breathing lamp is built in a pure simulation mode, external signal control is not needed, MCU resources are not occupied, and manufacturing cost is reduced.
2. The direct current function is started, the breathing lamp can flicker, so that the power supply product of the customer is informed of the state, and the experience of the user is improved.
3. The breathing lamp can be slowly turned off and turned on, so that a customer feels comfortable, and the use comfort level is improved.
Drawings
FIG. 1 is an electrical schematic block diagram of a prior art backup energy storage system;
FIG. 2 is an electrical schematic block diagram of the present invention;
FIG. 3 is a circuit diagram of the present invention;
FIG. 4 is a voltage waveform diagram of two ends of the resistors R3 and R4 in the oscillation module according to the present invention;
fig. 5 is a graph of the voltage waveform output by the operational amplifiers UI, U2 when the present invention is in operation.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As shown in fig. 2 and 3, the present invention includes a sampling module, a controlled switch, an oscillation module and an LED module. The output end V1 of the direct current output module is connected with the input end of the sampling module, the output end of the sampling module is connected with the control end of the controlled switch, the output end of the controlled switch is grounded, the input end of the controlled switch is connected with the oscillation module, and the oscillation module is connected with the LED module.
The sampling module is mainly used for collecting the voltage of the direct current output module of the backup energy storage system; the status indicator light will only start to operate if the dc output voltage is present.
The controlled switch has the main function of controlling the on-off of the direct current output voltage to the oscillation module; MOS transistors or triodes can be used.
The main function of the oscillation module is to convert the direct current output into a square wave voltage signal when the direct current output exists, and transmit the square wave voltage signal to the LED module.
The LED module has the main function of converting a square voltage signal output by the oscillation module into a triangular wave and driving the light emitting diode to achieve the effect of a breathing lamp.
The working process of the utility model is as follows: when the backup energy storage system presses the switch button, the corresponding module starts to output voltage. The direct current output module outputs voltage to the sampling module through the output end V1, and when the output end V1 outputs the direct current output voltage, the breathing lamp works all the time. When the direct current output module is turned off, the direct current output voltage does not exist, and then the breathing lamp stops working.
As shown in fig. 3, the controlled switch adopts an NMOS transistor Q1, and the sampling module includes resistors R1 and R2; wherein: the direct current output module is connected with a GND end through an output end V1 through resistors R2 and R1, and a common end of the resistors R2 and R1 is connected with a grid electrode of an NMOS tube Q1 in the oscillation module.
In the circuit, the output voltage of the output terminal V1 is divided by the resistors R1 and R2, and the voltage to ground of the resistor R1 is collected, so that the calculation formula of the voltage across the resistor R1 is as follows:
the operation process of the circuit is as follows: the output voltage of the output terminal V1 is generally 13V, and when the divided voltage of the resistor R1 reaches the turn-on voltage of the NMOS transistor Q1, the NMOS transistor Q1 is turned on, so that the oscillation module can start to operate. If the MOS transistor Q1 cannot reach the conducting state, the oscillation module cannot start to operate.
Besides, the controlled switch can also adopt a triode or other switching devices besides the NMOS transistor Q1.
As shown in fig. 3, the oscillating module includes transistors Q2 and Q3, capacitors C1 and C2, and resistors R3, R4, R5 and R6. The VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R3; the VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R5 and a capacitor C2; the base electrode of the triode Q3 is connected with the common end of the resistor R6 and the capacitor C1; the emitter of transistor Q3 is connected to the input of the controlled switch. The VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R6 and a capacitor C1; the VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R4; the base electrode of the triode Q2 is connected with the common end of the resistor R5 and the capacitor C2; the emitter of transistor Q2 is connected to the input of the controlled switch. The resistor R3 and the resistor R4 are current limiting resistors.
The circuit utilizes the characteristic of capacitance charge and discharge to lead the triode to be switched on or switched off, and the specific circuit principle analysis is as follows:
when the transistor Q2 is turned on, the voltage at the end of the capacitor C1 connected to the collector of the transistor Q2 is pulled low, and at this time, the resistor R6, the capacitor C1 and the transistor Q2 form a loop, and the capacitor C1 starts to charge.
When the capacitor C1 is charged, the voltage at one end of the capacitor C1 connected with the resistor R6 gradually rises, and when the voltage rises to a certain value, the transistor Q3 is turned on, and the resistor R5, the capacitor C2 and the transistor Q3 form a path. Before the transistor Q3 is turned on, the voltage to ground at the end of the capacitor C2 connected to the resistor R5 is the on voltage of the PN junction of the transistor, the voltage to ground at the end of the capacitor C2 connected to the resistor R3 is the voltage at the VCC end of the power module, and the voltage difference between the two ends of the capacitor C2 is the VCC end voltage minus the voltage of the PN junction.
When the transistor Q3 is turned on, the potential of the end of the capacitor C2 connected to the resistor R3 is pulled to the 0 point, so that the voltage of the end of the capacitor C2 connected to the resistor R5 is pulled to a negative voltage, the transistor Q2 is turned off, the potential of the end of the capacitor C1 connected to the transistor Q2 is pulled to the potential of the VCC end, and the voltage to ground of the end of the capacitor C1 connected to the resistor R6 is a PN-junction voltage.
As shown in fig. 4, the voltage across resistor R3 and resistor R4 form a square wave. And, the frequency can be changed by modifying the capacitance values of the capacitors C1 and C2, and the larger the capacitance value is, the smaller the frequency is.
As shown in FIG. 3, the LED module comprises an operational amplifier U1, an operational amplifier U2, a light emitting diode D4, and resistors R9, R10, R12-R17. The non-inverting input end of the operational amplifier U1 is connected with one end of the resistor R4 through the resistor R16, the inverting input end resistor R17 is connected with the other end of the resistor R4, the inverting input end is connected with the output end, the positive power supply end is connected with the VCC end, the negative power supply end is grounded, and the output end is grounded through the resistors R15 and R9. The common end of the resistors R15 and R9 is connected with the non-inverting input end of the operational amplifier U2 through the resistor R10, the two ends of the capacitor C3 are connected with the two ends of the resistor R9, the inverting input end of the operational amplifier U2 is grounded through the resistor R14, the inverting input end is connected with the output end through the resistor R13, the output end is connected with the cathode of the light-emitting diode D4, and the anode of the light-emitting diode D4 is connected with the GND end through the resistor R12.
In the circuit, firstly, the current on the resistor R4 is collected by the operational amplifier U1, the change of the current is collected by the resistor R9, and the collected voltage is filtered by the capacitor C3 and converted into the driving signal. Then, the driving signal is output as a triangular wave power signal through an operational amplifier U2, and drives a light emitting diode D2 to realize the function of an LED breathing lamp. And the resistor R12 is the current-limiting resistor of the LED D2, so that the normal light emission of the LED D2 is ensured.
When the direct current output module works, the voltage of the output end V1 of the direct current output module is set to be 13V, the resistor R1 is 10K, the resistor R2 is 10K, the C1 is 100uF, the capacitor C2 is 100uF, the resistor R15 is 4.5K, the resistor R9 is 30K, the C3 is 90uF, the R13 is 9K, and the R14 is 30K. First, when the dc output voltage is established, the transistor Q1 will be turned on, and the oscillation module starts to operate. Then, the capacitors C2 and C1 are charged and discharged by the transistors Q3 and Q2 and the resistors R5 and R6. Then, the LED module collects the voltage across the resistor R4 by using a follower formed by the operational amplifier U1, and divides the output voltage of the operational amplifier U1 by using the resistors R15 and R9 and inputs the divided voltage to the operational amplifier U2, and the resistor R13 and the operational amplifier U2 form negative feedback to amplify the voltage on the capacitor C3. Finally, as shown in fig. 5, the operational amplifier U2 converts the square wave voltage signal output by the operational amplifier U1 into a triangular wave voltage signal, and the light emitting diode D2 changes brightness along with the waveform signal, thereby achieving the breathing lamp effect.
The calculation formula of the output voltage Vo of the operational amplifier U2 is as follows, where V + is the voltage at the non-inverting input terminal:
it can be seen that the magnitude of the output voltage of the operational amplifier U2 can be adjusted by adjusting the resistance ratio of the resistors R13 and R14, and the larger the ratio of R13/R14 is, the larger the amplitude of the output voltage of the operational amplifier U2 is.
In conclusion, the light emitting diode can change from bright to dark and then from dark to bright along with the change of the square wave voltage, so that the effect of the breathing lamp is achieved. The visual indicator can be widely applied to various fields such as digital products, computers, sound equipment, automobiles and the like, and has good visual decoration and reminding indication effects. In addition, the whole circuit is mainly realized by adopting an analog circuit, has the advantages of ingenious design, convenient manufacture and low cost, and is suitable for batch development of factories.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A backup energy storage system breathing lamp control circuit is characterized by comprising a sampling module, a controlled switch, an oscillation module and an LED module;
the input end of the sampling module is connected with the direct current output module, and the output end of the sampling module is connected with the control end of the controlled switch; the voltage acquisition module is used for acquiring the voltage of the DC output module of the backup energy storage system;
the input end of the controlled switch is connected with the oscillation module, and the output end of the controlled switch is grounded; the sampling module is used for controlling the on-off of the sampling module and the oscillation module;
the oscillation module is connected with the LED module; the direct current output voltage is converted into a square wave voltage signal when being established;
the LED module is used for converting the square wave voltage signal output by the oscillation module into a triangular wave voltage signal and driving the light emitting diode to achieve the effect of a breathing lamp.
2. A backup energy storage system breathing lamp control circuit according to claim 1, wherein the sampling module comprises a resistor R1 and a resistor R2; the output end V1 of the DC output module is connected with the GND end through resistors R1 and R2, and the common end of the resistors R1 and R2 is connected with the control end of the controlled switch.
3. A backup energy storage system breathing lamp control circuit according to claim 1, wherein the controlled switch is a MOS transistor or a triode.
4. A backup energy storage system breathing lamp control circuit according to claim 3, wherein the controlled switch is an NMOS transistor Q1; the gate of the NMOS transistor Q1 is the control terminal of the controlled switch, the drain thereof is the input terminal of the controlled switch, and the source thereof is the output terminal of the controlled switch.
5. A backup energy storage system breathing lamp control circuit according to any of claims 1-4, characterized in that the oscillating module comprises transistors Q2, Q3, capacitors C1, C2, and resistors R3, R4, R5, R6;
the VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R3; the VCC end of the power supply module is connected with the collector of a triode Q3 through a resistor R5 and a capacitor C2; the base electrode of the triode Q3 is connected with the common end of the resistor R6 and the capacitor C1; the emitter of the triode Q3 is connected with the input end of the controlled switch;
the VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R6 and a capacitor C1; the VCC end of the power supply module is connected with the collector of a triode Q2 through a resistor R4; the base electrode of the triode Q2 is connected with the common end of the resistor R5 and the capacitor C2; the emitter of transistor Q2 is connected to the input of the controlled switch.
6. A backup energy storage system breathing lamp control circuit according to claim 5, wherein the LED module comprises an operational amplifier U1, an operational amplifier U2, a light emitting diode D4, a capacitor C3, resistors R9, R12, R13 and R15;
the non-inverting input end of the operational amplifier U1 is connected with one end of a resistor R4 connected with a VCC end, the inverting input end is connected with one end of a resistor R4 connected with a capacitor C1, the inverting input end is connected with the output end, the positive power supply end is connected with the VCC end, the negative power supply end is grounded, and the output end is grounded through resistors R15 and R9;
the common end of the resistors R15 and R9 is connected with the non-inverting input end of the operational amplifier U2, and two ends of the capacitor C3 are connected with two ends of the resistor R9; the inverting input terminal of the operational amplifier U2 is grounded, and the inverting input terminal is connected to the output terminal through the resistor R13, the output terminal is connected to the cathode of the light emitting diode D4, and the anode of the light emitting diode D4 is connected to the GND terminal through the resistor R12.
7. The backup energy storage system breathing lamp control circuit of claim 6, wherein the non-inverting input of the operational amplifier U1 is connected to one end of the VCC terminal through a resistor R16 and a resistor R4.
8. A backup energy storage system breathing lamp control circuit according to claim 6, wherein the inverting input of the operational amplifier U1 is connected to one end of the capacitor C1 through a resistor R17 and a resistor R4.
9. A backup energy storage system breathing lamp control circuit according to claim 6, characterized in that the non-inverting input of the operational amplifier U2 is connected to the common terminal of the resistors R15 and R9 through the resistor R10.
10. The backup energy storage system breathing lamp control circuit of claim 6, wherein the inverting input of the operational amplifier U2 is connected to ground through a resistor R14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122437674.6U CN215991276U (en) | 2021-10-09 | 2021-10-09 | Backup energy storage system breathing lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122437674.6U CN215991276U (en) | 2021-10-09 | 2021-10-09 | Backup energy storage system breathing lamp control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215991276U true CN215991276U (en) | 2022-03-08 |
Family
ID=80507484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122437674.6U Active CN215991276U (en) | 2021-10-09 | 2021-10-09 | Backup energy storage system breathing lamp control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215991276U (en) |
-
2021
- 2021-10-09 CN CN202122437674.6U patent/CN215991276U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102378454B (en) | Breath light control circuit | |
| US20190028032A1 (en) | Alternating current step-down circuit | |
| CN105898926A (en) | LED (Light Emitting Diode) power system and LED driving device thereof | |
| CN117311457B (en) | Display card over-frequency circuit | |
| CN203279256U (en) | Light-adjustable LED constant current source drive circuit | |
| CN215991276U (en) | Backup energy storage system breathing lamp control circuit | |
| CN107994893A (en) | A kind of remote control switch circuit | |
| CN112821888A (en) | Switch control circuit and switch control device | |
| CN203813867U (en) | Reset circuit and television set | |
| CN208479488U (en) | A kind of Switching Power Supply with power down self-locking protective circuit | |
| CN216981882U (en) | Time delay generating circuit | |
| CN203705989U (en) | Automobile seat temperature control circuit | |
| CN102946679A (en) | Respiration lamp control circuit and refrigerator with same | |
| CN113966052B (en) | Intelligent control circuit | |
| CN212413478U (en) | Control circuit for EMS | |
| CN215991275U (en) | Backup energy storage system's state indication breathing lamp | |
| CN203554729U (en) | LED drive light modulation circuit | |
| CN103841711B (en) | A kind of LED emergence lighting lamp and drive circuit thereof | |
| CN208386417U (en) | Linear direct current regulated power supply circuit and power supply | |
| CN205646780U (en) | Novel DC changes DC's constant current constant voltage protection circuit | |
| CN205750434U (en) | Air-conditioning, fan timing change-over circuit and air-conditioning, fan timing converter | |
| CN207024065U (en) | A kind of heartbeat indicating circuit for electronic auscultation device | |
| CN202474983U (en) | Intelligent lithium battery charger based on singlechip control | |
| CN217363367U (en) | Switch control circuit of mobile lighting equipment | |
| CN214479829U (en) | Dual-power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240305 Address after: No. 109 Qingdun Middle Road, Nanyang Town, Tinghu District, Yancheng City, Jiangsu Province (opposite Qingdun Gas Station) (8) Patentee after: Diange Co.,Ltd. Country or region after: China Address before: 401120 No. 1, floor 4, building 3, No. 21, Yunzhu Road, Yubei District, Chongqing Patentee before: Chongqing diange Technology (Group) Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |