CN206517639U - A kind of LED control devices go ripple module - Google Patents
A kind of LED control devices go ripple module Download PDFInfo
- Publication number
- CN206517639U CN206517639U CN201720163297.2U CN201720163297U CN206517639U CN 206517639 U CN206517639 U CN 206517639U CN 201720163297 U CN201720163297 U CN 201720163297U CN 206517639 U CN206517639 U CN 206517639U
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- Prior art keywords
- led control
- output end
- oxide
- semiconductor
- cathode output
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Abstract
The utility model discloses a kind of LED control devices and goes ripple module, including LED control device cathode output end LEDout+ and LED control device cathode output end LEDout, in addition to resistance R1, electrochemical capacitor C1, metal-oxide-semiconductor Q1, the cathode output end LEDoutNR+ for going ripple module and the cathode output end LEDoutNR for going ripple module；A kind of LED control devices are provided and go ripple module, concatenating grid by resistance obtains cut-in voltage, using the working region characteristic of metal-oxide-semiconductor, by LED control device output ripple current drains between the drain electrode of metal-oxide-semiconductor and source electrode, removes most of ripple current.Gate series electric capacity is so that grid voltage is stable, and module exports more stable voltage x current；Not only circuit structure is simple, and is more suitable for the LED control devices of low-power, and greatly reduces cost.
Description
Technical field
The utility model is related to a kind of LED control devices field, and particularly a kind of LED control devices go ripple module to lead
Domain.
Background technology
At present, LED has the advantages that energy-saving and environmental protection, long lifespan, light efficiency are high because of it, is used widely in lighting field.
Existing LED power, controls its stroboscopic, in order to protect wherein needing to be improved for the structure of LED power to design
The eye health of user, improves product competitiveness.But design on the market typically all uses and goes ripple IC chip scheme to control
Mos removes ripple, and such control module for going ripple module to be used in low power LED is such when considering cost factor
Often price is high for scheme, and enterprise's production cost is higher.Therefore design and a kind of do not need IC chip to go ripple module, Ke Yiyou
Effect saves design cost and production cost, improving production efficiency, and with significant practical value, the technology is for small-power light fixture
Cost can be substantially reduced.
Utility model content
The purpose of this utility model is to solve the problems of the prior art there is provided a kind of suitable for small-power light fixture
LED control devices go ripple module.
To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：
A kind of LED control devices remove ripple module, including LED control device cathode output ends LEDout+ and LED control dress
Put cathode output end LEDout-, in addition to resistance R1, electrochemical capacitor C1, metal-oxide-semiconductor Q1, the cathode output end for going ripple module
The LEDoutNR+ and cathode output end LEDoutNR- for going ripple module, the LED control devices cathode output end LEDout+ companies
Connecting resistance R1 one end and metal-oxide-semiconductor Q1 drain electrode；Resistance R1 other end connection electrochemical capacitor C1 positive poles and metal-oxide-semiconductor Q1 grid
Pole；Metal-oxide-semiconductor Q1 source electrode is with going the cathode output end LEDoutNR+ of ripple module to connect；The connection LED controls of electrochemical capacitor C1 negative poles
Device cathode output end LEDout- and cathode output end LEDoutNR- processed.
Further, in addition to protection circuit, the protection circuit includes diode D1, voltage-regulator diode ZD1 and voltage stabilizing
Diode ZD2, the diode D1 negative poles are connected across metal-oxide-semiconductor Q1 drain and gate after being docked with voltage-regulator diode ZD1；It is described
Voltage-regulator diode ZD2 positive poles and negative pole are connected across between metal-oxide-semiconductor Q1 source electrode and grid.
Further, in addition to electrolytic capacitor filter C0, the electrolytic capacitor filter C0 are connected across LED control device positive poles
Output end LEDout+ and LED control device cathode output end LEDout- two ends.
Technical scheme described in the utility model is relative to prior art, the beneficial effect of acquirement：
1st, the design provides a kind of LED control devices and goes ripple module, is obtained by metal-oxide-semiconductor grid series resistor and opens electricity
Pressure, using the working region characteristic of metal-oxide-semiconductor, makes ripple current consumption between metal-oxide-semiconductor drain electrode and metal-oxide-semiconductor source electrode, and metal-oxide-semiconductor grid
Pole series capacitance makes metal-oxide-semiconductor grid voltage stable, and the ripple current that LED control devices are exported is removed to realize, and module
Output is more stablized；The circuit is not only simple in construction, and is more suitable for the LED control devices of low-power, also greatly reduction
Cost.
2nd, the protection circuit being made up of diode and zener diode, makes metal-oxide-semiconductor grid and source electrode, drain electrode and source voltage
Pressure difference can be in tolerance range in metal-oxide-semiconductor, it is to avoid metal-oxide-semiconductor is breakdown, and protection metal-oxide-semiconductor is not damaged by.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes one of the present utility model
Point, schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model
It is improper to limit.In the accompanying drawings：
Fig. 1 is the utility model circuit connection diagram.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are clearer, clear, with
Under in conjunction with the accompanying drawings and embodiments, the utility model is further elaborated.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in figure 1, a kind of LED control devices remove ripple module, including LED control device cathode output ends LEDout+
With LED control device cathode output end LEDout-, in addition to resistance R1, electrochemical capacitor C1, metal-oxide-semiconductor Q1, ripple module is being gone just
The pole output end LEDoutNR+ and cathode output end LEDoutNR- for going ripple module, the LED control devices cathode output end
LEDout+ connection resistance R1 one end and metal-oxide-semiconductor Q1 drain electrode；Resistance R1 other end connection electrochemical capacitor C1 positive poles and MOS
Pipe Q1 grid；Metal-oxide-semiconductor Q1 source electrode is with going the cathode output end LEDoutNR+ of ripple module to connect；Electrochemical capacitor C1 negative poles
Connect LED control device cathode output end LEDout- and cathode output end LEDoutNR-.
Also include protection circuit, the protection circuit includes diode D1, voltage-regulator diode ZD1 and voltage-regulator diode ZD2,
The diode D1 negative poles are connected across metal-oxide-semiconductor Q1 drain and gate after being docked with voltage-regulator diode ZD1；The voltage-regulator diode
ZD2 positive poles and negative pole are connected across between metal-oxide-semiconductor Q1 source electrode and grid.
Also LED control device cathode output ends are connected across including electrolytic capacitor filter C0, the electrolytic capacitor filter C0
LEDout+ and LED control device cathode output end LEDout- two ends.
This removes ripple block coupled in series in LED control device output ends, and LED control devices are started working, LEDout+ and
LEDout- two ends output voltage electric current, metal-oxide-semiconductor grid obtains cut-in voltage Vgsth by R1, and metal-oxide-semiconductor is opened, LEDoutNR+
And LEDoutNR- two ends output voltage electric current, now Vds be approximately equal to Vgsth, VLEDout is approximately equal to VLEDoutnr+Vds, line
Ripple current drain is between drain electrode and source electrode.
The design provides a kind of LED control devices and goes ripple module, is obtained by metal-oxide-semiconductor grid series resistor and opens electricity
Pressure, using the working region characteristic of metal-oxide-semiconductor, makes ripple current consumption between metal-oxide-semiconductor drain electrode and metal-oxide-semiconductor source electrode, and metal-oxide-semiconductor grid
Pole series capacitance makes metal-oxide-semiconductor grid voltage stable, and the ripple current that LED control devices are exported is removed to realize, and module
Output is more stablized；The circuit is not only simple in construction, and is more suitable for the LED control devices of low-power, also greatly reduction
Cost.The protection circuit being made up of diode and zener diode, makes metal-oxide-semiconductor grid and source electrode, drain electrode and source voltage pressure difference
Can be in tolerance range in metal-oxide-semiconductor, it is to avoid metal-oxide-semiconductor is breakdown, protection metal-oxide-semiconductor is not damaged by.
Preferred embodiment of the present utility model is description above described, it is to be understood that the utility model is not limited to
Embodiment is stated, and the exclusion to other embodiment should not be regarded as.By enlightenment of the present utility model, those skilled in the art combine
The change that known or prior art, knowledge are carried out also should be regarded as in protection domain of the present utility model.
Claims (3)
1. a kind of LED control devices remove ripple module, including LED control device cathode output end LEDout+ and LED control devices
Cathode output end LEDout-, it is characterised in that：Also include resistance R1, electrochemical capacitor C1, metal-oxide-semiconductor Q1, the positive pole for going ripple module
The output end LEDoutNR+ and cathode output end LEDoutNR- for going ripple module, the LED control devices cathode output end
LEDout+ connection resistance R1 one end and metal-oxide-semiconductor Q1 drain electrode；Resistance R1 other end connection electrochemical capacitor C1 positive poles and MOS
Pipe Q1 grid；Metal-oxide-semiconductor Q1 source electrode is with going the cathode output end LEDoutNR+ of ripple module to connect；Electrochemical capacitor C1 negative poles
Connect LED control device cathode output end LEDout- and cathode output end LEDoutNR-.
2. a kind of LED control devices as claimed in claim 1 go ripple module, it is characterised in that：Also include protection circuit, institute
Stating protection circuit includes diode D1, voltage-regulator diode ZD1 and voltage-regulator diode ZD2, the diode D1 negative poles and voltage stabilizing two
Metal-oxide-semiconductor Q1 drain and gate is connected across after pole pipe ZD1 docking；The voltage-regulator diode ZD2 positive poles are connected across metal-oxide-semiconductor with negative pole
Between Q1 source electrode and grid.
3. a kind of LED control devices as claimed in claim 2 go ripple module, it is characterised in that：Also include filtering electrolysis electricity
Hold C0, it is defeated that the electrolytic capacitor filter C0 is connected across LED control device cathode output end LEDout+ and LED control device negative poles
Go out to hold LEDout- two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163297.2U CN206517639U (en) | 2017-02-22 | 2017-02-22 | A kind of LED control devices go ripple module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163297.2U CN206517639U (en) | 2017-02-22 | 2017-02-22 | A kind of LED control devices go ripple module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517639U true CN206517639U (en) | 2017-09-22 |
Family
ID=59868819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720163297.2U Expired - Fee Related CN206517639U (en) | 2017-02-22 | 2017-02-22 | A kind of LED control devices go ripple module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517639U (en) |
-
2017
- 2017-02-22 CN CN201720163297.2U patent/CN206517639U/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: 20170922 Termination date: 20190222 |