CN211556926U - A charger - Google Patents
A charger Download PDFInfo
- Publication number
- CN211556926U CN211556926U CN202020311074.8U CN202020311074U CN211556926U CN 211556926 U CN211556926 U CN 211556926U CN 202020311074 U CN202020311074 U CN 202020311074U CN 211556926 U CN211556926 U CN 211556926U
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- CN
- China
- Prior art keywords
- charger
- power
- output end
- led lamp
- supply port
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- Expired - Fee Related
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Abstract
The utility model discloses a charger, which comprises a box body, wherein a synchronous step-down DCDC conversion circuit taking a converter with SY8205FCC model as a core is arranged in the box body, the surface of the box body is provided with a power input wiring and a power output end, and the power output end comprises a USB power supply port and an LED lamp power supply port; the power input wiring is electrically connected with the synchronous step-down DCDC conversion circuit through the switch circuit, and the output end of the synchronous step-down DCDC conversion circuit is electrically connected with the power output end. Compared with the existing DCDC charger, the utility model discloses a converter has that conversion efficiency is high, the EMI characteristic is good, the periphery is simple and advantage with low costs relatively. The LED lamp power supply port adaptation market of addding is with various types of LED lamp, satisfies that the customer inserts different power manually, and the demand that the USB power supply port was found and was inserted in the environment of dark can be satisfied to low-power LED lamp, and the LED lamp of high power can directly be used as illuminating tool such as desk lamp.
Description
Technical Field
The utility model relates to a charger technical field especially relates to a charger.
Background
At present, with the wide use of various digital devices, the performance of electronic products is also improved very rapidly, but the technology of lithium batteries is not greatly broken through all the time, so that the electronic products need to be charged frequently. A general mobile power supply, a vehicle-mounted charger, or a USB docking station externally connected to a computer host can be regarded as a DCDC charger, but the existing DCDC charger is not connected to a lamp for illumination, and a user cannot find a charging port of the charger to connect a data line in a dark environment, so that the user experience is poor.
Disclosure of Invention
In order to solve the above problem, an object of the present invention is to provide a portable power source capable of storing charging wires and having good portability and easy maintenance.
The purpose of the utility model is realized by adopting the following technical scheme:
a charger comprises a box body, wherein a synchronous step-down DCDC conversion circuit taking a converter with SY8205FCC model as a core is arranged in the box body, a power input wiring and a power output end are arranged on the surface of the box body, and the power output end comprises a USB power supply port and an LED lamp power supply port; the power input wiring is electrically connected with the synchronous step-down DCDC conversion circuit through a switch circuit, and the output end of the synchronous step-down DCDC conversion circuit is electrically connected with the power output end.
Furthermore, the surface of the box body is also provided with a touch aluminum electrode for switching, and the touch aluminum electrode is electrically connected to the synchronous voltage reduction DCDC conversion circuit.
Furthermore, the input end of the synchronous buck DCDC conversion circuit is provided with a filter circuit, and the filter circuit is formed by connecting a plurality of capacitors in parallel.
Further, the filter circuit is formed by connecting a capacitor C1, a capacitor C4 and a capacitor C5 in parallel.
Further, the output end of the synchronous buck DCDC conversion circuit is provided with a voltage division feedback resistor, and the voltage division feedback resistor comprises a resistor R1 and a resistor R2.
Further, the interface specification of the power input wiring is 2pin interface or DC2.5 or DC 4.0.
Further, the interface specification of the power supply port of the LED lamp is a 2pin interface or DC 2.5.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a mobile power supply to the converter of SY8205FCC model sets up two output voltage for the core, exports USB power supply port and LED lamp power supply port respectively. The converter of SY8205FCC model has the advantage that conversion efficiency is high, the EMI characteristic is good, the periphery is simple and the cost is low relatively to, the user only needs to pass through the switch circuit activation the utility model discloses can make USB power supply port and LED lamp power supply port produce voltage simultaneously. The LED lamp power supply port adaptation market of addding is with various types of LED lamp, satisfies that the customer inserts different power manually, and the demand that the USB power supply port was found and was inserted in the environment of dark can be satisfied to low-power LED lamp, and the LED lamp of high power can directly be used as illuminating tool such as desk lamp.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a circuit diagram of the synchronous buck DCDC converter circuit of the present invention.
In the figure: 10. a box body; 11. a power input connection; 12. an LED lamp power supply port; 13. a USB power supply port; 14. the aluminum electrodes were touched.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 and fig. 2, the utility model discloses a charger specifically is direct current charger, including box body 10, be equipped with in the box body 10 and use the converter of SY8205FCC model to be the synchronous step-down DCDC converting circuit of core, the converter of this model has that conversion efficiency is high, the EMI characteristic is good, peripheral simple and with relatively low costs advantage. The surface of the box body 10 is provided with a power input wiring 11 and a power output terminal. The interface specification of the power input connection 11 shown in fig. 1 is DC2.5, and in other embodiments, the interface specification of the power input connection 11 may be a 2pin interface or DC 4.0. The power input connection 11 is electrically connected with the synchronous step-down DCDC conversion circuit through the switch circuit, and the output end of the synchronous step-down DCDC conversion circuit is electrically connected with the power output end. The power supply output end comprises a USB power supply port 13 and an LED lamp power supply port 12, and the USB power supply port 13 can provide 5.0V charging voltage and 500mA charging current. The LED lamp power supply port 12 can supply power to the LED lamp, in this embodiment, the interface specification of the LED lamp power supply port 12 is DC2.5, and after the LED lamp with corresponding specification is connected, the interface specification of the LED lamp power supply port 12 can be 2pin, so as to provide a lighting effect for the environment near the box body 10.
In this embodiment, the surface of the box 10 is further provided with a touch aluminum electrode 14 for switching, the touch aluminum electrode 14 is connected to the synchronous step-down DCDC conversion circuit, and in the circuit diagram shown in fig. 2, the touch aluminum electrode 14 is a switch K for controlling the conduction of the enable pin EN. The output end of the synchronous voltage reduction DCDC conversion circuit is provided with a voltage division feedback resistor, the voltage division feedback resistor comprises a resistor R1 and a resistor R2, the FB pin has a fixed voltage, and the output voltage V is calculated through the voltage of the FB pin, the resistor R1 and the resistor R2out。
In this embodiment, the input end of the synchronous buck DCDC conversion circuit is provided with a filter circuit, in the circuit diagram shown in fig. 2, the filter circuit is formed by connecting a capacitor C1, a capacitor C4 and a capacitor C5 in parallel, and the filter circuit is used for filtering VinRipple in the filter.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (7)
1. A charger, includes the box body, its characterized in that: a synchronous step-down DCDC conversion circuit taking a SY8205FCC type converter as a core is arranged in the box body, a power input wiring and a power output end are arranged on the surface of the box body, and the power output end comprises a USB power supply port and an LED lamp power supply port; the power input wiring is electrically connected with the synchronous step-down DCDC conversion circuit through a switch circuit, and the output end of the synchronous step-down DCDC conversion circuit is electrically connected with the power output end.
2. The charger of claim 1, wherein: and the surface of the box body is also provided with a touch aluminum electrode for switching, and the touch aluminum electrode is electrically connected with the synchronous voltage reduction DCDC conversion circuit.
3. The charger of claim 1, wherein: the input end of the synchronous voltage reduction DCDC conversion circuit is provided with a filter circuit, and the filter circuit is formed by connecting a plurality of capacitors in parallel.
4. The charger of claim 3, wherein: the filter circuit is formed by connecting a capacitor C1, a capacitor C4 and a capacitor C5 in parallel.
5. The charger of claim 1, wherein: the output end of the synchronous voltage reduction DCDC conversion circuit is provided with a voltage division feedback resistor, and the voltage division feedback resistor comprises a resistor R1 and a resistor R2.
6. The charger of claim 1, wherein: the interface specification of the power input wiring is a 2pin interface or DC2.5 or DC 4.0.
7. The charger of claim 1, wherein: the interface specification of the LED lamp power supply port is a 2pin interface or DC 2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311074.8U CN211556926U (en) | 2020-03-13 | 2020-03-13 | A charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311074.8U CN211556926U (en) | 2020-03-13 | 2020-03-13 | A charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211556926U true CN211556926U (en) | 2020-09-22 |
Family
ID=72494821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020311074.8U Expired - Fee Related CN211556926U (en) | 2020-03-13 | 2020-03-13 | A charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211556926U (en) |
-
2020
- 2020-03-13 CN CN202020311074.8U patent/CN211556926U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |