CN211184375U - Solar lawn lamp control circuit capable of being charged in parallel and discharged in series - Google Patents
Solar lawn lamp control circuit capable of being charged in parallel and discharged in series Download PDFInfo
- Publication number
- CN211184375U CN211184375U CN202020109737.8U CN202020109737U CN211184375U CN 211184375 U CN211184375 U CN 211184375U CN 202020109737 U CN202020109737 U CN 202020109737U CN 211184375 U CN211184375 U CN 211184375U
- Authority
- CN
- China
- Prior art keywords
- chip
- pin
- diode
- control circuit
- battery
- 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 a parallelly connected solar energy lawn lamp control circuit that charges series discharge, including solar panel SO L AR, chip U1, chip U2, diode D1 ' S positive pole and diode D2 ' S positive pole are connected to solar panel SO L AR ' S positive pole, diode D1 ' S negative pole connecting resistance R1, resistance R L and battery BT1 ' S positive pole, electric capacity C1 and chip U1 ' S foot 5 is connected to resistance R1 ' S the other end, electric capacity C1 ' S the other end is connected to battery BT1 ' S negative pole, chip U1 ' S foot 6 and chip U2 ' S foot 1, chip U1 ' S foot 1 connects chip U2 ' S foot 6, the utility model discloses a lithium cell protection circuit that DW01 and 8205S are constituteed has the overcharge, overdischarge, overcurrent, short-circuit protection etc. function, and parallel conversion control circuit, disconnection during the charging, switch on during discharging, the charging speed, the voltage of discharging is fast stabilized.
Description
Technical Field
The utility model relates to the field of lighting technology, specifically a parallelly connected solar energy lawn lamp control circuit that charges and establish ties and discharge.
Background
The solar lamp usually uses a single or multiple lithium batteries connected in parallel as a storage battery of the lamp, and the single or multiple lithium batteries connected in parallel have simple charge and discharge control circuit and low cost. But the single cell voltage is lower, consisting of: p = UI shows that, when the lamp power is increased, the discharge current is increased, the loss of the line and the component is increased, and the efficiency is low. Therefore, the batteries may be used in series, and the loss can be reduced and the efficiency can be improved under the condition of the same power. However, the requirement for the consistency of the batteries is high when the batteries are connected in series, and an equalizing circuit is added to ensure that the voltages of the batteries are consistent. This leads to increased circuit complexity and cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a parallelly connected solar energy lawn lamp control circuit that charges and establish ties and discharge to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the solar lawn lamp control circuit comprises a solar panel SO AR, a chip U and a chip U, wherein the anode of the solar panel SO AR is connected with the anode of a diode D and the anode of the diode D, the cathode of the diode D is connected with the anodes of a resistor R and a battery BT, the other end of the resistor R is connected with a capacitor C and a pin 5 of the chip U, the cathode of the battery BT is connected with the other end of the capacitor C, a pin 6 of the chip U and a pin 1 of the chip U, the pin 1 of the chip U is connected with the pin 6 of the chip U, the pin 3 of the chip U is connected with the pin 4 of the chip U, the pin 2 of the chip U is connected with the resistor R, the other end of the resistor R is connected with the pin 3 of the chip U, the anode of the diode D and the port 3 of the rectifier bridge D, the cathode of the diode D is connected with the pin 1 of the resistor R, the pin 1 of the rectifier bridge D and the battery BT, the other end of the resistor R is connected with the capacitor C and the pin 5 of the chip U, the cathode of the capacitor C is connected with the pin 6 of the chip U, the pin 1 of the rectifier bridge U is connected with the pin 6 of the pin 3 of the cathode of the MOS transistor Q, the pin 3 of the rectifier bridge, the diode R and the pin of the MOS transistor Q are connected with the drain of the MOS transistor Q, the transistor Q of the other end of the MOS transistor Q is connected with the diode D, the transistor Q of the.
As a further aspect of the present invention: the model numbers of the chip U1 and the chip U3 are DW 01.
As a further aspect of the present invention: the model numbers of the chip U2 and the chip U4 are 8205S.
As a further aspect of the present invention: the MOS transistor Q1 and the MOS transistor Q2 are in the type of SI 2300.
As a further aspect of the present invention: the output voltage of the battery BT1 and the output voltage of the battery BT2 are both 3.7V.
Compared with the prior art, the beneficial effects of the utility model are that: the lithium battery protection circuit formed by DW01 and 8205S has the functions of overcharge, overdischarge, overcurrent, short circuit protection and the like; the serial-parallel conversion control circuit is disconnected during charging and is connected during discharging, the charging speed is high, and the discharging voltage is stable.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Embodiment 1 please refer to fig. 1, in an embodiment of the present invention, a solar lawn lamp control circuit with parallel charging and series discharging includes a solar panel SO AR, a chip U, and a chip U, wherein an anode of the solar panel SO AR is connected to an anode of a diode D and an anode of the diode D, a cathode of the diode D is connected to a resistor R, a resistor R and a cathode of the battery BT, the other end of the resistor R is connected to a capacitor C and a pin 5 of the chip U, a cathode of the battery BT is connected to the other end of the capacitor C, a pin 6 of the chip U and a pin 1 of the chip U, the pin 1 of the chip U is connected to the pin 6 of the chip U, the pin 3 of the chip U is connected to a pin 4 of the chip U, the pin 2 of the chip U is connected to the resistor R, the other end of the resistor R is connected to the pin 3 of the chip U, the anode of the diode D and a port 3 of the rectifier bridge D, the cathode of the diode D is connected to the resistor R, the port 1 of the rectifier bridge D and a pin 1 of the battery BT, the other end of the capacitor C and the pin 5 of the chip U are connected to a cathode of the capacitor C, the cathode of the battery BT is connected to the pin 6 of the capacitor C, the anode of the chip U and the resistor Q of the rectifier bridge are connected to a drain of the MOS chip U, the diode Q3 of the rectifier bridge, the rectifier bridge are connected to the diode Q, the drain of the diode Q3, the diode Q and the diode Q are connected to the diode Q3 of the diode Q3, the diode D, the diode Q.
As shown in FIG. 1, ① and ② in the figure are lithium battery protection circuits composed of DW01 and 8205S and have the functions of overcharge, overdischarge, overcurrent, short-circuit protection and the like, and ③ is a serial-parallel conversion control circuit which is disconnected during charging and is connected during discharging.
The battery used by the circuit is two 3.7V ternary lithium 18650 batteries, the open-circuit voltage of a solar slice is 5V, when sunlight is sufficient in daytime, the voltage of the solar slice is divided by R6 and R7, Q1 is driven, Q1 is conducted, the source voltage of Q1 is pulled low, Q1 is cut off, therefore, the positive pole of BT1 is not conducted to the negative pole of BT1, BT1 and BT1 are in parallel connection, the solar slice charges the two batteries BT1 and BT1, the charging loop of BT1 is D1-BT 1-U1-D1, the charging loop of BT1 is D1-BT 1-U1-D1, the voltage of the solar slice is 0V at night, Q1 is cut off, Q1 is conducted, the positive pole of BT1 is conducted with BT1, the negative pole of BT1 is conducted, the two batteries are changed from parallel connection into series connection, and are discharged to the load, and the discharging loop is BT 1-1.
Example 2: based on embodiment 1, the model numbers of the chip U1 and the chip U3 are DW 01. Chip U2 and chip U4 were model 8205S. The model of the MOS transistor Q1 and the model of the MOS transistor Q2 are SI 2300. The output voltages of battery BT1 and battery BT2 were both 3.7V.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The solar lawn lamp control circuit comprises a solar panel SO AR, a chip U and a chip U, and is characterized in that the anode of the solar panel SO AR is connected with the anode of a diode D and the anode of the diode D, the cathode of the diode D is connected with a resistor R, a resistor R and the anode of a battery BT, the other end of the resistor R is connected with a capacitor C and a pin 5 of the chip U, the cathode of the battery BT is connected with the other end of the capacitor C, a pin 6 of the chip U and a pin 1 of the chip U, the pin 1 of the chip U is connected with the pin 6 of the chip U, the pin 3 of the chip U is connected with a pin 4 of the chip U, the pin 2 of the chip U is connected with the resistor R, the other end of the resistor R is connected with the pin 3 of the chip U, the anode of the diode D and a port 3 of a rectifier bridge D, the cathode of the diode D is connected with the resistor R, the pin 1 of the rectifier bridge D and the anode of the battery, the resistor R is connected with the pin 5 of the capacitor C and the pin 5 of the chip U, the cathode of the battery BT is connected with the other end of the pin 6 of the capacitor C, the pin 3 of the diode D, the pin 1 of the rectifier bridge is connected with the drain of the MOS chip U, the drain of the MOS chip U is connected with the drain of the diode Q, the diode D, the drain of the diode D and the MOS chip U, the drain of the MOS chip.
2. The parallel charging and series discharging solar lawn lamp control circuit as claimed in claim 1, wherein the model of the chip U1 and the chip U3 is DW 01.
3. The parallel charging and series discharging solar lawn lamp control circuit as claimed in claim 1, wherein the model of the chip U2 and the model of the chip U4 are 8205S.
4. The parallel charging and series discharging solar lawn lamp control circuit as claimed in claim 2, wherein the MOS transistor Q1 and the MOS transistor Q2 are of type SI 2300.
5. The parallel charging and series discharging solar lawn lamp control circuit as claimed in claim 2, wherein the output voltage of the battery BT1 and the output voltage of the battery BT2 are both 3.7V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109737.8U CN211184375U (en) | 2020-01-18 | 2020-01-18 | Solar lawn lamp control circuit capable of being charged in parallel and discharged in series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109737.8U CN211184375U (en) | 2020-01-18 | 2020-01-18 | Solar lawn lamp control circuit capable of being charged in parallel and discharged in series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211184375U true CN211184375U (en) | 2020-08-04 |
Family
ID=71804070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020109737.8U Active CN211184375U (en) | 2020-01-18 | 2020-01-18 | Solar lawn lamp control circuit capable of being charged in parallel and discharged in series |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211184375U (en) |
-
2020
- 2020-01-18 CN CN202020109737.8U patent/CN211184375U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1949620A (en) | Power managing system with multi-charging modes | |
| CN202564995U (en) | Multichannel battery pack charge-discharge control device | |
| CN203326667U (en) | Solar energy-based fault indicator power supplying power source | |
| CN210164557U (en) | High-power starting power supply | |
| CN211184375U (en) | Solar lawn lamp control circuit capable of being charged in parallel and discharged in series | |
| CN201150006Y (en) | Charging-discharging device for lithium ion battery set | |
| CN214626473U (en) | Prevent hungry dead self-starting photovoltaic power | |
| CN202127240U (en) | Overcharging and over-discharging protection circuit of lithium battery | |
| CN201315689Y (en) | Solar energy lawn lamp control circuit | |
| CN203660568U (en) | Parallel charging circuit and protection circuit of lead-acid series storage battery group | |
| CN101262137A (en) | Solar alkalescent Zn-Mn dry battery charger and its mobile phone charger | |
| CN202817843U (en) | Lithium battery charging circuit which can be charged while using and is used on laser surveying and mapping instrument | |
| CN203056650U (en) | Lithium iron phosphate cell emergency power source | |
| CN202218007U (en) | Power lithium ion battery protective circuit | |
| CN205231830U (en) | Series battery's photovoltaic charging circuit | |
| CN201044371Y (en) | Solar charger unit for electronic calculator | |
| CN206441116U (en) | A kind of intelligent charger of use USB interface of computer | |
| CN205846807U (en) | A kind of lithium battery and the photovoltaic generating system of super capacitor hybrid energy-storing | |
| CN201260085Y (en) | Solar energy controller | |
| CN108646544A (en) | A kind of grid charging stake discharge control system | |
| CN215267708U (en) | Battery undervoltage automatic power-off circuit | |
| CN210985720U (en) | Mixed type battery pack charging and discharging control system | |
| CN213585266U (en) | Lithium ion battery charging circuit | |
| CN212323766U (en) | Overcharge protection circuit for storage battery | |
| CN203233206U (en) | Balancing and protection circuit for lithium battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |