Dual-mode power supplying type LED power supply
A LED power supply, dual-mode technology, applied in the field of LED power supply with dual-mode power supply, can solve the problems of single power supply mode of driving power supply, easy to forget to charge, affect shooting efficiency, etc., and achieve the effect of priority power supply and various power supply modes
Inactive Publication Date: 2019-11-22
南京艾飞特智能电子科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, the existing supplementary light power supply has the following problems: (1) the power supply mode of the driving power supply is relatively single, and can only be powered by AC power supply or battery power supply; (2) when used outdoors, it is often found that the battery power is insufficient, and it is easy to forget to charge problems that affect shooting efficiency
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 1
[0025] A dual-mode power supply LED power supply provided by the present invention is used to supply power to LED lamp panels; figure 1 As shown, it includes input AC power, PFC step-up module, first DC / DC step-down module, second DC / DC step-down module, battery, buck-boost drive module and dimming control MCU;
[0026] The input AC power is output through the PFC boost module to boost the DC power, and the boosted DC power is divided into two channels and input to the first DC / DC step-down module and the second DC / DC step-down module, the first DC / DC step-down module and the second The DC / DC step-down modules all output step-down direct current, and the voltage value of the step-down direct current is the same as the maximum voltage value of the battery; The module outputs the drive current to the dimming control MCU, and the dimming control MCU outputs a PWM signal to adjust the magnitude of the drive current, which is used to drive the LED light board; the step-down direct ...
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 discloses a dual-mode power supplying type LED power supply which is used for supplying power to an LED lamp panel. The LED power supply comprises an input alternating current, a PFC boosting module, a first DC / DC step-down module, a second DC / DC step-down module, a storage battery, a step-up and step-down driving module and a dimming control MCU. Input alternating current passes through the PFC boosting module to output boosted direct current, and the boosted direct current is divided into two paths to be input into the first DC / DC step-down module and the second DC / DC step-downmodule respectively. Step-down direct current of the first DC / DC step-down module is input to the step-up and step-down driving module, the step-up and step-down driving module outputs driving current to the dimming control MCU, the dimming control MCU outputs PWM signals to adjust the magnitude of the driving current, and the driving current is used for driving the LED lamp panel; the step-downdirect current of the second DC / DC step-down module is connected to a storage battery, and the storage battery is connected to the step-up and step-down driving module to supply power to the step-up and step-down driving module. A dual-mode power supplying mode is adopted, the power supply mode can be automatically recognized, the storage battery can be automatically charged, use is convenient, and safety and high efficiency are achieved.
Description
technical field [0001] The invention belongs to the field of LED power supplies, and in particular relates to a dual-mode power supply LED power supply. Background technique [0002] With the improvement of living standards, it has become a fashion for family members to take various photos. There are two types of photo shoots: indoor and outdoor. Among them, indoor shooting requires supplementary lighting to achieve good shooting results. With the development of technology, accurate supplementary light in outdoor shooting has become a standard process in the photography industry. The purpose of supplementary light is not only to make the light brighter, but also to ensure a certain degree of softness; therefore, supplementary light usually It needs to have the function of color temperature adjustment. Specifically, the lamp beads of the supplementary light must have two types of pure white light and yellow light. The brightness of the white light and yellow light beads need...
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 Applications(China)
IPC IPC(8): H05B33/08H02M3/158H02J7/10H05B44/00
CPCH02M3/158H02J7/06
Inventor 毛鹏付强胜尹大双
Owner 南京艾飞特智能电子科技有限公司