CN202305766U - Electric quantity indicating and low electric quantity prompting reset circuit used for solar LED lamp - Google Patents
Electric quantity indicating and low electric quantity prompting reset circuit used for solar LED lamp Download PDFInfo
- Publication number
- CN202305766U CN202305766U CN2011203853775U CN201120385377U CN202305766U CN 202305766 U CN202305766 U CN 202305766U CN 2011203853775 U CN2011203853775 U CN 2011203853775U CN 201120385377 U CN201120385377 U CN 201120385377U CN 202305766 U CN202305766 U CN 202305766U
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- China
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- circuit
- electric quantity
- cpu
- reset circuit
- led lamp
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- 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.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a charging circuit, and especially relates to an electric quantity indicating and low electric quantity prompting reset circuit used for a solar LED lamp. The circuit includes a CPU and a battery voltage detection circuit which is connected with the input terminal of the CPU. The circuit is characterized in that the input terminal of the battery voltage detection circuit is connected with a COMS driving circuit. The output terminals of the CPU are connected with a pulse width modulation output circuit, an electric quantity indicating circuit, a low electric quantity prompting circuit, and a voltage reset circuit. The output terminal of the pulse width modulation output circuit is connected with the input terminal of the COMS. Through connecting the electric quantity indicating circuit, the low electric quantity prompting circuit, and the voltage reset circuit with the output terminals of the CPU, the circuit has the electric quantity indicating function and the low electric quantity prompting reset function, so a user can be reminded to make the charging preparation in advance, and the condition that the solar LED lamp is used while being charged is prevented, and consequently the service lifetime of the LED lamp is prolonged.
Description
Technical field
The utility model relates to a kind of charging circuit, and especially a kind of electric weight indication and low electricity that is used for solar LED (Light Emitting Diode) lamp reminded reset circuit.
Background technology
Along with progress of science and technology; The continuous consumption of non-renewable energy resources, human more and more urgent to the pursuit of energy-conserving and environment-protective, sun power is as the novel energy of environmental protection; Continually developed and utilized; The LED lamp is also continually developed and is improved as the energy-conserving and environment-protective product in the illuminations, yet is difficult in the prior art Application of Solar Energy to LED lamp the inside; Even have Application of Solar Energy is arrived the LED lamp, be mostly to be applied to the field emergency illumination, the function and application occasion is more single; Solar energy utilization ratio is low; Brightness of illumination is not high, and does not have electric weight indication and low electricity prompting reset function, can't carry out charging in advance and preparing; Sometimes also need while charging to use, reduce LED lamp serviceable life.
Summary of the invention
The utility model is in order to solve defective and the deficiency that above-mentioned prior art exists; A kind of have electric weight indication and low electricity prompting reset function are provided; Can remind the user to carry out charging in advance prepares; Stop the situation of use, prolong LED lamp the electric weight indication that is used for solar LED (Light Emitting Diode) lamp and the low electricity prompting reset circuit in serviceable life while charging.
The technical scheme of the utility model: a kind of electric weight indication and low electricity that is used for solar LED (Light Emitting Diode) lamp reminded reset circuit; Comprise CPU and the battery voltage detection circuit that is connected the input end of CPU; The input end of said cell voltage testing circuit is connected with the COMS driving circuit; The output terminal of said CPU is connected with width modulation output circuit, electric weight indicating circuit, low electric alert circuit and voltage reset circuit, and the output terminal of said width modulation output circuit is connected with the input end of COMS.
Preferably, the input end of said CPU also is connected with signal feedback circuit, and the input end of said signal feedback circuit is connected with the output terminal of voltage reset circuit.
Preferably, the output terminal of said voltage reset circuit also is connected with battery protecting circuit.
The output terminal that the utility model is used in CPU connects electric weight indicating circuit, low electric alert circuit and voltage reset circuit; Make it have electric weight indication and low electricity prompting reset function; Can remind the user to carry out charging in advance and prepare, stop situation about using, prolongation LED lamp serviceable life while charge.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation, but be not restriction the utility model protection domain.
As shown in Figure 1; A kind of electric weight indication and low electricity that is used for solar LED (Light Emitting Diode) lamp reminded reset circuit; Comprise CPU and the battery voltage detection circuit that is connected the input end of CPU; The input end of cell voltage testing circuit is connected with the COMS driving circuit, and the output terminal of CPU is connected with width modulation output circuit, electric weight indicating circuit, low electric alert circuit and voltage reset circuit, and the output terminal of width modulation output circuit is connected with the input end of COMS.The input end of CPU also is connected with signal feedback circuit, and the input end of signal feedback circuit is connected with the output terminal of voltage reset circuit.The output terminal of voltage reset circuit also is connected with battery protecting circuit.
The electric quantity monitoring deixis of the utility model:
This novel practical adopts integrated COMS circuit.CPU provides the square wave of width modulation to the electric quantity monitoring circuit; This square wave is exactly the benchmark comparative voltage of electric quantity monitoring circuit; The benchmark comparative voltage produces relatively electric current of benchmark through transistor amplifier, and reference voltage and reference current are monitored the sparking voltage and the electric current of battery in real time.The voltage of battery compares with the reference voltage that pre-sets through the COMS circuit, and comparative result feeds back to CPU.CPU passes through the work of comparative result control electric weight indicating circuit, tells the electric weight of user's remaining battery through the color and the flicker variation of electric weight pilot lamp.
Low electric prompting, standby and the reset function of the utility model:
When the electric quantity monitoring electric circuit inspection to battery electric quantity less than the battery rated capacity 30% the time, the low electric alert circuit work of CPU control, the mode that adopts WTD to reset simultaneously makes pilot lamp high bright flicker in per 3 seconds once, reminds this novel practical of user to be about to not have.When the electric quantity monitoring electric circuit inspection to battery electric quantity less than the battery rated capacity 20% the time, CPU closes the output of constant-current circuit, and control COMS circuit cuts off the output of battery from PCB, opens charge mode simultaneously and monitors.This moment, this novel practical can not be lighted.After the user charged, the work of CPU control voltage reset circuit automatically reset it.
Claims (3)
1. an electric weight indication and a low electricity that is used for solar LED (Light Emitting Diode) lamp reminded reset circuit; Comprise CPU and the battery voltage detection circuit that is connected the input end of CPU; It is characterized in that: the input end of said cell voltage testing circuit is connected with the COMS driving circuit; The output terminal of said CPU is connected with width modulation output circuit, electric weight indicating circuit, low electric alert circuit and voltage reset circuit, and the output terminal of said width modulation output circuit is connected with the input end of COMS.
2. a kind of electric weight indication and low electricity that is used for solar LED (Light Emitting Diode) lamp according to claim 1 reminded reset circuit; It is characterized in that: the input end of said CPU also is connected with signal feedback circuit, and the input end of said signal feedback circuit is connected with the output terminal of voltage reset circuit.
3. a kind of electric weight indication and low electricity that is used for solar LED (Light Emitting Diode) lamp according to claim 1 and 2 reminded reset circuit, and it is characterized in that: the output terminal of said voltage reset circuit also is connected with battery protecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203853775U CN202305766U (en) | 2011-10-12 | 2011-10-12 | Electric quantity indicating and low electric quantity prompting reset circuit used for solar LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203853775U CN202305766U (en) | 2011-10-12 | 2011-10-12 | Electric quantity indicating and low electric quantity prompting reset circuit used for solar LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305766U true CN202305766U (en) | 2012-07-04 |
Family
ID=46374638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203853775U Expired - Fee Related CN202305766U (en) | 2011-10-12 | 2011-10-12 | Electric quantity indicating and low electric quantity prompting reset circuit used for solar LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305766U (en) |
-
2011
- 2011-10-12 CN CN2011203853775U patent/CN202305766U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |