CN206058808U - LED module of voltage division power supply - Google Patents
LED module of voltage division power supply Download PDFInfo
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- CN206058808U CN206058808U CN201620997383.9U CN201620997383U CN206058808U CN 206058808 U CN206058808 U CN 206058808U CN 201620997383 U CN201620997383 U CN 201620997383U CN 206058808 U CN206058808 U CN 206058808U
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- led
- power supply
- power
- branch road
- led module
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- 239000000203 mixture Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The utility model discloses a LED module of partial pressure power supply is applicable to single voltage output power, including the first branch road that blue LED and/or green LED are constituteed to and DC/DC step-down circuit, the second branch road that red LED established ties and forms, this first branch road and second branch road connect in parallel between single voltage output power's two outputs. A low-power high-efficiency DC/DC voltage reduction circuit is added to a red LED branch of the LED module, Vgb is reduced to Vr by the circuit, two branches can share one-way power output, a single-output-voltage power supply can be adopted to supply power to the module, and the power supply is easy to purchase and low in cost.
Description
Technical field
This utility model is related to the LED modules of LED display, the LED modules that particularly a kind of partial pressure is powered.
Background technology
The Vf values of blue, green LED are about 2.8～3.4V, and the Vf values of red LED are about 1.8～2.4V, in order to reduce module
Caloric value, blue, green LED takes different voltages to power from red LED respectively, and such as blue, green LED voltage is Vgb, red
Color LED voltage is Vr, and Vgb is often greater than Vr, general voltage phase difference 1V or so, such as Vgb=3.8V, Vr=2.8V.In order to divide
Pressure drives LED modules, then the method that can adopt " dual output power supply "（Such as Fig. 1）But, the power supply in this method
Cost performance is not high, purchases suitable power supply relatively difficult.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide the LED that a kind of partial pressure is powered
Module.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of LED modules that partial pressure is powered, it is adaptable to univoltage out-put supply, including blue led and/or green LED group
Into tie point, and the second branch road that DC/DC reduction voltage circuits, red LED are in series, the tie point and the second branch road
It is connected in parallel between two outfans of univoltage out-put supply.
The technical program has the beneficial effect that：One small-power high efficiency is increased by the red LED branch road in LED modules
DC/DC reduction voltage circuits, the circuit is reduced to Vr Vgb so that two branch roads can share power supply output all the way, thus can be with
Powered to module using the power supply of single output voltage, such power supply buying is easy, and cost is lower；At the same time, DC/DC blood pressure lowerings
Circuit compares other reduction voltage circuits, and the heat produced on LED modules is less, is more beneficial for the service life and work effect of product
Rate.
Description of the drawings
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further.
Fig. 1 is the schematic block circuit diagram that traditional LED modules dual output partial pressure is powered；
Fig. 2 is the schematic block circuit diagram that this utility model LED module partial pressures are powered；
Fig. 3 is the DC/DC reduction voltage circuit instantiation figures of this utility model LED modules.
Specific embodiment
As shown in Fig. 2 the LED modules powered for a kind of partial pressure of the present utility model, it is adaptable to univoltage out-put supply, bag
Include the tie point of blue led and/or green LED composition, and second that DC/DC reduction voltage circuits, red LED are in series
Road, the tie point and the second branch circuit parallel connection are between two outfans of univoltage out-put supply.
By the efficient DC/DC reduction voltage circuits of red LED branch road one small-power of increase in LED modules, the circuit
Vgb is reduced to Vr so that two branch roads can share power supply output all the way, can thus adopt the power supply of single output voltage to give
Module is powered, and such power supply buying is easy, and cost is lower.Fig. 3 is DC/DC reduction voltage circuit instantiations, to illustrate this technology
Scheme is it is achieved that meet fully disclosed requirement；But DC/DC reduction voltage circuits are not limited only to the example, can be on this basis
It is conventional to change, or other conventionally known reduction voltage circuits are substituting this example, as long as the blood pressure lowering based on the technical program
Thought causes bluish-green LED shared all the way out-put supplies in parallel with red LED, within protection domain of the present utility model.
Preferred embodiments of the present utility model are the foregoing is only, this utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the technical scheme of this utility model purpose belong to protection domain of the present utility model it
It is interior.
Claims (1)
1. a kind of LED modules that partial pressure is powered, it is adaptable to univoltage out-put supply, it is characterised in that：Including blue led and/or
The tie point of green LED composition, and the second branch road that DC/DC reduction voltage circuits, red LED are in series, the tie point
With the second branch circuit parallel connection between two outfans of univoltage out-put supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997383.9U CN206058808U (en) | 2016-08-30 | 2016-08-30 | LED module of voltage division power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997383.9U CN206058808U (en) | 2016-08-30 | 2016-08-30 | LED module of voltage division power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206058808U true CN206058808U (en) | 2017-03-29 |
Family
ID=58379041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997383.9U Active CN206058808U (en) | 2016-08-30 | 2016-08-30 | LED module of voltage division power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206058808U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383235A (en) * | 2020-12-29 | 2021-02-19 | 郴州市福瑞康电子有限公司 | Power supply device for parallel connection of LED outdoor advertising screens |
| CN113541300A (en) * | 2021-07-06 | 2021-10-22 | 浙江大华技术股份有限公司 | Power supply redundancy backup control circuit and LED display system |
| WO2021226804A1 (en) * | 2020-05-11 | 2021-11-18 | 深圳市艾比森光电股份有限公司 | Negative voltage dual-voltage power supply-driven led display |
-
2016
- 2016-08-30 CN CN201620997383.9U patent/CN206058808U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021226804A1 (en) * | 2020-05-11 | 2021-11-18 | 深圳市艾比森光电股份有限公司 | Negative voltage dual-voltage power supply-driven led display |
| US11561591B2 (en) | 2020-05-11 | 2023-01-24 | Shenzhen Absen Optoelectronic Co., Ltd. | LED display driven by dual-negative-voltage power supply |
| CN112383235A (en) * | 2020-12-29 | 2021-02-19 | 郴州市福瑞康电子有限公司 | Power supply device for parallel connection of LED outdoor advertising screens |
| CN113541300A (en) * | 2021-07-06 | 2021-10-22 | 浙江大华技术股份有限公司 | Power supply redundancy backup control circuit and LED display system |
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