CN205319729U - Double -colored LED instructs device of state - Google Patents
Double -colored LED instructs device of state Download PDFInfo
- Publication number
- CN205319729U CN205319729U CN201521009555.9U CN201521009555U CN205319729U CN 205319729 U CN205319729 U CN 205319729U CN 201521009555 U CN201521009555 U CN 201521009555U CN 205319729 U CN205319729 U CN 205319729U
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- resistance
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- led
- charging management
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Abstract
The utility model relates to a double -colored LED can instruct the technical field of state, the utility model provides a double -colored LED instructs device of state, it includes battery charging management module, a battery, LED control circuit, a CPU control module, wherein LED control circuit is connected with battery charging management module on the one hand, on the other hand and CPU control module are connected, the connected mode makes LED control circuit can indicate charging state of battery through attending, can realize the frequency of LED scintillation again, with the different operating condition of suggestion equipment.
Description
Technical field
The utility model belongs to circuit field, can the device of indicating status in particular to a kind of dual-colored LED.
Background technology
In consumer electronics and electronic technology field, general electronics all has nickel metal hydride battery or the rechargeable battery powered and relevant display unit of other materials, such as charactron, liquid crystal display, and OLED display screen etc. In the process using electronics, no matter shut down or under open state, when electronics is carried out charging work, on the one hand, it is necessary to electronics to charging, charge the status information such as complete clearly point out to user; On the other hand, when normal operating condition, need electronics can provide easy-to-understand operation conditions and current work state information, as at GPS+ big-dipper satellite positioning navigating device or other are without in the wearable electronic of display screen, need to show different working ordeies by LED, and existing equipment only realizes single prompting function.
Practical novel content
The purpose of this utility model is to provide the device of a kind of dual-colored LED indicating status, it is intended to solves LED in existing equipment and shows the single problem of state.
The utility model provides the device of a kind of dual-colored LED indicating status, it is characterised in that, comprising:
Battery charging management module, battery, LED control circuit, dual-colored LED and CPU control module.
Wherein battery charging management module is connected with described battery, and for being charged by battery, described battery charging management module is also connected with described LED control circuit, for controlling described LED control circuit.
CPU control module is connected with one end of described LED control circuit, and the described LED control circuit the other end is connected with described dual-colored LED, dual-colored LED D2 described in described CPU control module and described LED control circuit co-controlling.
Further, battery charging management module is battery charging management chip, described battery charging management chip comprises pin 1VCC_IN, pin 2VBAT, pin 3VOUT and pin 4CHRG, described pin 1VCC_IN is working power input pin, described pin 2VBAT is cell voltage input pin, described pin 3VOUT is power supply output pin, and described pin 4CHRG is charging state output pin.
Further, the positive pole of battery connects the pin 2VBAT of described battery charging management chip.
Further, CPU control module comprises GPIO interface.
Further, LED control circuit comprises: point compressive resistance R1, resistance R2, resistance R6 and resistance R7, current limliting resistance R3, resistance R4 and resistance R5, clamping diode D1, triode Q1 and triode Q2, one end of described dual-colored LED D2 is connected with the pin 3VOUT of described battery charging management chip, the other end of described dual-colored LED D2 is connected with one end of resistance R5 with current limliting resistance R4 respectively, the resistance R4 the other end is connected with one end of clamping diode D1 and is connected to the pin 4CHRG of described battery charging management chip altogether, the other end of clamping diode D1 and resistance R1, resistance R2 is connected with one end of resistance R3, the other end of resistance R1 is extremely connected with outside power supply one, the other end ground connection of resistance R2, the resistance R3 the other end is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with the collector electrode of triode Q2 and is connected to the other end of resistance R5 altogether, the base stage of triode Q2 is connected with one end of resistance R6 with resistance R7, the other end ground connection of resistance R7, the grounded emitter of triode Q1 and triode Q2, the other end of resistance R6 and the GPIO interface of described CPU control module.
Further, the pin 1VCC_IN of battery charging management module is connected with the positive pole of outside power supply, and described outside power supply is wall adapter, mobile power supply or USB charger.
Further, dual-colored LED D2 is common-anode red and green color LED.
The useful effect of device of the utility model a kind of dual-colored LED indicating status: by institute's mode of connection make LED control circuit can point out battery charging state, can realize again LED flicker frequency, to point out equipment different operating state.
Accompanying drawing explanation
The device schematic diagram of a kind of dual-colored LED indicating status that Fig. 1 provides for the utility model embodiment;
The device circuit figure of a kind of dual-colored LED indicating status that Fig. 2 provides for the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the utility model, and it is not used in restriction the utility model.
With reference to figure 1,2, the device of a kind of dual-colored LED 9 indicating status that the utility model embodiment provides, comprising:
Battery charging management module 5, battery 6, LED control circuit 7, CPU control module 8.
Battery charging management module 5 is battery charging management chip, battery charging management chip comprises pin 1VCC_IN, pin 2VBAT, pin 3VOUT and pin 4CHRG, pin 1VCC_IN is working power input pin, pin 2VBAT is cell voltage input pin, pin 3VOUT is power supply output pin, and pin 4CHRG is charging state output pin.
The pin 1VCC_IN of battery charging management chip is connected with the positive pole of outside power supply, the one in the outside optional wall adapter of power supply, mobile power supply, USB charger.
The pin 2VBAT of battery charging management chip is connected with the positive pole of battery.
The pin 3VOUT of battery charging management chip 5 is connected with the anode of dual-colored LED 9D2.
Pin 4CHRG and resistance R4 one end of battery charging management chip 5 is connected jointly with the negative electrode of clamping diode D1.
Battery charging management chip mainly act on be management battery charge, the duration of charging, charge mode, power source circuit switching and include but not limited to that the DC-DC power source etc. of LED control circuit, electronics provides power supply for late-class circuit.
When the battery cell is charged, the pin 4CHRG of battery charging management chip exports lower level; When battery is full of or the duration of charging ends, the pin 4CHRG of battery charging management chip turns into high resistance state.
When battery charges, charging current flows into battery through the inside of electricity managing chip through pin 2VBAT through pin 1VCC_IN from outside power supply input, is battery charging; Electric current is powered to late-class circuit through pin 3VOUT through the inside of electricity managing chip from outside power supply input through pin 1VCC_IN simultaneously.
When battery is fully charged or without outside power source charges, the power supply of late-class circuit is provided by battery, and electric current flows out from pin 3VOUT through battery charging management chip internal from the positive pole of battery through battery charging management chip pin 2VBAT, for late-class circuit provides power supply.
LED control circuit 7 comprises: point compressive resistance R1, resistance R2, resistance R6 and resistance R7, current limliting resistance R3, resistance R4 and resistance R5, clamping diode D1, NPN triode Q1 and NPN triode Q2 and dual-colored LED 9D2, wherein dual-colored LED 9D2 mono-is red LED, one is green LED, the anode of dual-colored LED 9D2 is connected with the pin 3VOUT of described battery charging management chip, the negative electrode of red LED is connected with resistance R4, the negative electrode of green LED is connected with resistance R5, the resistance R4 the other end is connected with the negative electrode of clamping diode D1 and is connected to the pin 4CHRG of described battery charging management chip altogether, the anode of clamping diode D1 and resistance R1, resistance R2 is connected with one end of resistance R3, the other end of resistance R1 is connected with outside positive source, the other end ground connection of resistance R2, the resistance R3 the other end is connected with the base stage of NPN triode Q1, the collector electrode of NPN triode Q1 is connected with the collector electrode of NPN triode Q2 and is connected to the other end of resistance R5 altogether, the base stage of NPN triode Q2 is connected with one end of resistance R6 with resistance R7, the other end ground connection of resistance R7, the grounded emitter of NPN triode Q1 and NPN triode Q2, the other end of resistance R6 and the GPIO (GeneralPurposeInputOutput of described CPU control module, universal input/output) interface be connected.
Can drawing equally, the present embodiment can also use triode NPN triode Q1 and NPN triode Q2 being replaced to two PNP, and the diode in circuit changes anode cathode direction accordingly, equally also can realize above-mentioned functions.
The device of dual-colored LED 9 indicating status of the present embodiment have employed single dual-colored LED 9, this dual-colored LED 9 includes but not limited to the red green LED of common-anode, and dual-colored LED 9 be integrated in one be of a size of long 2.0mm width 1.8mm encapsulate in, this LED Type of Welding can be surface mount (SMT) can also be directly insert form.
The device principle of work of embodiment dual-colored LED 9 indicating status:
When battery charges, when the pin 1VCC_IN of battery charging management chip is connected with the positive pole of outside power supply, the pin 4CHRG of battery charging management chip exports lower level, from the anode of pin 3VOUT through the red LED of dual-colored LED 9, pass through red LED, current limliting resistance R4, pin 4CHRG to battery charging management chip forms current circuit, red LED lights, and represents battery just in charging, now, because the effect of clamping diode D1, make NPN triode Q1 cannot conducting, so now green LED can not light, keep OFF state.
When the pin 1VCC_IN of battery charging management chip is connected with the positive pole of outside power supply, when battery is fully charged or the duration of charging ends, the pin 4CHRG of battery charging management chip turns into high resistance state, voltage difference between pin 3VOUT and pin 4CHRG is less than the forward voltage of red LED, so now red LED is extinguished.And now, the clamper effect of clamping diode D1 was lost efficacy, NPN triode Q1 meets turn-on condition, electric current flows out the anode entering green LED through current limliting resistance R5 through the pin 3VOUT of charging management chip, enter NPN triode Q1, forming current circuit, green LED lights, and represents that battery is fully charged or duration of charging cut-off.
Utilize the GPIO of CPU control module 8 that NPN triode Q2 is carried out conducting and closing control, green LED can be made to realize the states such as Chang Liang, fast sudden strain of a muscle, slow sudden strain of a muscle. When CPU control module 8 controls green LED by GPIO, flow out the anode entering green LED from the pin 3VOUT of charging management chip through current limliting resistance R5, by NPN triode Q2 to form loop, green LED is lit. The control signal of the exportable different frequency of CPU control module 8, control green LED realizes Chang Liang, different frequency is dodged slowly and the different frequency working order such as sudden strain of a muscle soon, such as, when being not limited to satellite search condition, available green LED dodges expression soon, after locking satellite, available slow sudden strain of a muscle represents, when reawaking electronics by button or other modes, it may be achieved the many lower green LED prompting consumer electronic devices of flicker are waken up.
One or more technical schemes that the utility model embodiment provides, have at least following technique effect:
1) it is connected with battery charging management module 5 according to LED control circuit 7 one aspect, it is achieved that during charging, point out battery charging state.
2) it is connected with CPU control module 8 on the other hand according to LED control circuit 7, it is achieved that prompting equipment different operating state.
3) the device LED control circuit 5 of the present embodiment, structure is simple, by force functional, reliable and stable.
4) device of the present embodiment adopts single red and green color LED9, integrated level height, can send but be not limited to ruddiness, green glow and sodium yellow (when red LED and green LED are lit jointly).
5) device of the present embodiment utilizes CPU control module 8 to control LED and points out electronic device works state, the device prompting state flexible and diverse of the present embodiment, and the GPIO resource taking CPU control module 8 is few.
6) under the device open state of the present embodiment, the charging state that battery charges can also be pointed out, red light prompting in charging, green light or amber light dodges soon or amber light dodges prompting slowly after being full of.
7) under the device open state of the present embodiment, the working order of electronics can be pointed out, it is possible to being but extinguish after being not limited to the normal bright 3s of open state green light, satellite search condition green light dodges soon, satellite locking state green light dodges slowly, and button triggers state green light and glimmers three times.
The foregoing is only better embodiment of the present utility model; not in order to limit the utility model; all any amendment, equivalent replacement and improvement etc. done within spirit of the present utility model and principle, all should be included within protection domain of the present utility model.
Claims (7)
1. the device of a dual-colored LED indicating status, it is characterised in that, comprising:
Battery charging management module, battery, LED control circuit, dual-colored LED and CPU control module;
Wherein said battery charging management module is connected with described battery, and for being charged by battery, described battery charging management module is also connected with described LED control circuit, for controlling described LED control circuit;
Described CPU control module is connected with one end of described LED control circuit, and the described LED control circuit the other end is connected with described dual-colored LED, dual-colored LED D2 described in described CPU control module and described LED control circuit co-controlling.
2. the device of dual-colored LED indicating status according to claim 1, it is characterized in that, described battery charging management module is battery charging management chip, described battery charging management chip comprises pin 1VCC_IN, pin 2VBAT, pin 3VOUT and pin 4CHRG, described pin 1VCC_IN is working power input pin, described pin 2VBAT is cell voltage input pin, and described pin 3VOUT is power supply output pin, and described pin 4CHRG is charging state output pin.
3. the device of dual-colored LED indicating status according to claim 2, it is characterised in that, the positive pole of described battery connects the pin 2VBAT of described battery charging management chip.
4. the device of dual-colored LED indicating status according to claim 3, it is characterised in that, described CPU control module comprises GPIO interface.
5. the device of dual-colored LED indicating status according to claim 4, it is characterized in that, described LED control circuit comprises: point compressive resistance R1, resistance R2, resistance R6 and resistance R7, current limliting resistance R3, resistance R4 and resistance R5, clamping diode D1, triode Q1 and triode Q2, one end of described dual-colored LED D2 is connected with the pin 3VOUT of described battery charging management chip, the other end of described dual-colored LED D2 is connected with one end of resistance R5 with current limliting resistance R4 respectively, the resistance R4 the other end is connected with one end of clamping diode D1 and is connected to the pin 4CHRG of described battery charging management chip altogether, the other end of clamping diode D1 and resistance R1, resistance R2 is connected with one end of resistance R3, the other end of resistance R1 is extremely connected with outside power supply one, the other end ground connection of resistance R2, the resistance R3 the other end is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with the collector electrode of triode Q2 and is connected to the other end of resistance R5 altogether, the base stage of triode Q2 is connected with one end of resistance R6 with resistance R7, the other end ground connection of resistance R7, the grounded emitter of triode Q1 and triode Q2, the other end of resistance R6 and the GPIO interface of described CPU control module.
6. the device of dual-colored LED indicating status according to claim 5, it is characterised in that, the pin 1VCC_IN of described battery charging management module is connected with the positive pole of outside power supply, and described outside power supply is wall adapter, mobile power supply or USB charger.
7. the device of dual-colored LED indicating status as claimed in claim 6, it is characterised in that, described dual-colored LED D2 is common-anode red and green color LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009555.9U CN205319729U (en) | 2015-12-07 | 2015-12-07 | Double -colored LED instructs device of state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009555.9U CN205319729U (en) | 2015-12-07 | 2015-12-07 | Double -colored LED instructs device of state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205319729U true CN205319729U (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009555.9U Withdrawn - After Issue CN205319729U (en) | 2015-12-07 | 2015-12-07 | Double -colored LED instructs device of state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205319729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356554A (en) * | 2015-12-07 | 2016-02-24 | 广州中海达卫星导航技术股份有限公司 | Double color LED state indicating apparatus |
-
2015
- 2015-12-07 CN CN201521009555.9U patent/CN205319729U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356554A (en) * | 2015-12-07 | 2016-02-24 | 广州中海达卫星导航技术股份有限公司 | Double color LED state indicating apparatus |
| CN105356554B (en) * | 2015-12-07 | 2019-01-22 | 广州中海达卫星导航技术股份有限公司 | A kind of device of dual-colored LED instruction state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160615 Effective date of abandoning: 20190122 |
|
| AV01 | Patent right actively abandoned |