Charging treasure output voltage regulator circuit
A technology of output voltage stabilization and power bank, applied in battery circuit devices, circuit devices, charging/discharging current/voltage regulation, etc., can solve problems such as output voltage instability, and achieve good voltage stabilization effect and stable charging voltage.
Active Publication Date: 2018-08-31
江西省灿辉新能源科技有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the main categories in the market are charging treasures specially configured for iPhone and multifunctional charging treasures, but even for iPhones, they are basically equipped with standard USB output, which can basically meet the needs of mobile devices such as mobile phones, MP3, MP4, PDA, PSP, bluetooth earphones, digital cameras and other digital products, there are certain problems in the existing charging treasure, especially for the circuit of the fast charging interface, the stable output voltage is more important, and the instability of the core current is very easy to cause the output voltage instability phenomenon
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.
[0026] A charging treasure output voltage stabilizing circuit, comprising
[0027] USB output interface, the USB output interface includes a power supply output pin and a ground pin;
[0028] A first voltage stabilizing capacitor C16 is arranged between the power supply output pin and the ground pin;
[0029] The ground terminal is also coupled to an N-channel enhanced field effect transistor, and a first voltage equalizing resistor R26 is connected in series between the gate of the N-channel enhanced field effect transistor and the ground terminal;
[0030] A second equalizing resistor R25 is also coupled between the drain of the N-channel enhancement type field effect transistor and the ground terminal;
[0031] The source of the N-ch...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an output voltage stabilization circuit of a charger baby. The output voltage stabilization circuit comprises an USB output interface, wherein the USB output interface comprises a power output pin and a ground pin, a first voltage stabilization capacitor is arranged between the power output pin and the ground pin, a ground end is further coupled to an N channel enhancement field-effect transistor, a first voltage sharing resistor is connected in series between a gate of the N channel enhancement field-effect transistor and the ground end, a second voltage sharing resistor is further coupled between a drain of the N channel enhancement field-effect transistor and the ground end, a source of the N channel enhancement field-effect transistor is coupled to an oscillation circuit, and the oscillation circuit is further coupled to the ground end. The output voltage stabilization circuit has the advantages that a relatively good voltage stabilization effect can be achieved, an output voltage between the ground end and the ground pin is compensated, and a compensation mode is that a load is compensated by an output current of the enhancement N channel field-effect transistor; and during charging, the current is shunted to the ground end from the ground pin so as to achieve current equalization if the load fluctuates and the voltage of the drain does not change, and the charging voltage is ensured to be relatively stable.
Description
technical field [0001] The invention relates to the technical field of mobile charging, and more specifically relates to an output voltage stabilizing circuit of a power bank. Background technique [0002] Charger Baby refers to a device that can directly charge mobile devices and has its own power storage unit. At present, the main categories in the market are charging treasures specially configured for iPhone and multifunctional charging treasures, but even for iPhones, they are basically equipped with standard USB output, which can basically meet the needs of mobile devices such as mobile phones, MP3, MP4, PDA, PSP, bluetooth earphones, digital cameras and other digital products, there are certain problems in the existing charging treasure, especially for the circuit of the fast charging interface, the stable output voltage is more important, and the instability of the core current is very easy to cause the output voltage instability phenomenon. Contents of the inventi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/00H02J7/007
Inventor 郭明铭
Owner 江西省灿辉新能源科技有限公司