CN205491316U - Inverter device of light modulator - Google Patents
Inverter device of light modulator Download PDFInfo
- Publication number
- CN205491316U CN205491316U CN201620116018.2U CN201620116018U CN205491316U CN 205491316 U CN205491316 U CN 205491316U CN 201620116018 U CN201620116018 U CN 201620116018U CN 205491316 U CN205491316 U CN 205491316U
- Authority
- CN
- China
- Prior art keywords
- unit
- dimmer
- voltage
- conversion apparatus
- overvoltage protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an inverter device of light modulator, including in proper order with mains connection's overvoltage protection filtering unit, ACDC translation unit, steady voltage unit, the unit and transfer the optical signal output unit of adjusting luminance, still include a circuit control unit, overvoltage protection filtering unit passes through circuit control unit and municipality ferroelectric phase even. The alternating current turns into high voltage DC through overvoltage protection filtering unit, obtains direct current low voltage through ACDC translation unit again, the further steady voltage of steady voltage unit, and this voltage converts the voltage of adjusting luminance into through the unit of adjusting luminance, must simulate the signal of adjusting luminance after the unit operation is followed to filtering amplification unit and voltage. In addition, through switch -on of the steerable messenger of circuit control unit or disconnection alternating current power supply, improve the security. The utility model provides an inverter device of light modulator that the security performance is high.
Description
Technical field
This utility model relates to LED field, is specifically related to the AC conversion apparatus of a kind of dimmer.
Background technology
Relative to traditional electric filament lamp and electricity-saving lamp, LED has low in energy consumption, highly reliable, environmental protection and the advantage such as response time is short, and therefore, LED is increasingly widely used in the various fields such as illumination, backlight and decoration, progressively replace traditional electric filament lamp and electricity-saving lamp, become the lighting source of main flow.Along with LED solves at the extensive application in various fields, many problems demand round the actual application of LED, the safety how improving LED dimmer AC conversion apparatus is one of them.
The LED dimmer AC conversion apparatus of prior art is typically only capable to the AC signal merely realized civil power input and is converted into direct current dim signal; to reach the technique effect of LED light modulation; and shortcoming considers in terms of safety and protectiveness; do not ensure that the safety of subsequent conditioning circuit, ensure the Electrical Safety of user.
In sum, it is provided that the AC conversion apparatus of the dimmer that a kind of security performance is high is that industry is still needed and solved the technical problem that.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides the AC conversion apparatus of the high dimmer of a kind of security performance.
This utility model be the technical scheme is that by its technical problem of solution
A kind of AC conversion apparatus of dimmer; including the overvoltage protection filter unit electrically connected with city successively, ACDC converting unit, voltage regulation unit, dimming unit and dim signal output unit; it is characterized in that: also include that a circuit control unit, described overvoltage protection filter unit are electrically connected with city by circuit control unit.
Further, filter and amplification unit and voltage follow unit also it are connected with between described dimming unit and dim signal output unit in turn.
Further, described ACDC converting unit is also associated with a state indication unit.
Further, described ACDC converting unit includes rectifier bridge stack, commutation capacitor, power supply chip and the high frequency transformer being sequentially connected with.
Further, described overvoltage protection filter unit includes safety element, pressure cell, common mode inductance and the safety electric capacity being sequentially connected with.
Further, being additionally provided with a switch S1 between civil power and overvoltage protection filter unit, dimming unit includes a rotational potentiometer, and described switch S1 and rotational potentiometer are gang switch.
Further, described filter and amplification unit includes that an operational amplifier, described voltage follow unit include at least one operational amplifier.
Further, the operational amplifier that described filter and amplification unit and voltage follow unit are used is LM324 operational amplifier.
Further, the power supply chip of described ACDC converting unit uses AP8012 power supply chip.
Further, described circuit control unit is a relay.
The beneficial effects of the utility model are: this utility model provides the AC conversion apparatus of a kind of dimmer; the AC signal of civil power input can be converted into adjustable direct current dim signal; and can cut off, by circuit control unit, the AC signal inputted, there is the effects such as the safety the guaranteeing subsequent conditioning circuit Electrical Safety with protection user.
Accompanying drawing explanation
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings:
Fig. 1 is module diagram of the present utility model；
Fig. 2 is the circuit theory diagrams of overvoltage protection filter unit；
Fig. 3 is the circuit theory diagrams of ACDC converting unit；
Fig. 4 is filter and amplification unit and the circuit theory diagrams of voltage follow unit.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further details:
Referring to the drawings 1; the AC conversion apparatus of this utility model dimmer; the AC signal of civil power input is converted into adjustable direct current dim signal; including the overvoltage protection filter unit 1 electrically connected with city successively, ACDC converting unit 2, voltage regulation unit 3, dimming unit 4, filter and amplification unit 7, voltage follow unit 8 and dim signal output unit 5; ACDC converting unit 2 is also associated with a state indication unit 21; in addition; also including a circuit control unit 6, overvoltage protection filter unit 1 is electrically connected with city by circuit control unit 6.Wherein, ACDC converting unit 2 includes rectifier bridge stack, commutation capacitor, power supply chip and the high frequency transformer being sequentially connected with, and the power supply chip of ACDC converting unit 2 uses AP8012 power supply chip；Overvoltage protection filter unit 1 includes safety element, pressure cell, common mode inductance and the safety electric capacity being sequentially connected with；Filter and amplification unit 7 includes an operational amplifier, voltage follow unit 8 includes at least one operational amplifier, in the present embodiment, voltage follow unit 8 includes that the operational amplifier that three operational amplifiers, filter and amplification unit 7 and voltage follow unit 8 are used is LM324 operational amplifier.Civil power provides power supply, input ac power AC110V/220V；The ac signal of input is protected by overvoltage protection filter unit 1 by safety element and pressure cell, then is filtered through common mode inductance and safety electric capacity；The voltage that 2 overvoltage protection filter units 1 of ACDC converting unit input is after rectifier bridge stack and commutation capacitor filter, then the change-over circuit via the element such as power supply chip and high frequency transformer composition, is converted to the DC voltage of low pressure；The DC voltage that 3 ACDC converting units 2 of voltage regulation unit export is stable at a lower magnitude of voltage through precision voltage regulator device；The output voltage of voltage regulation unit 3 is converted to continually varying analog voltage by rotational potentiometer by dimming unit 4；Filter and amplification unit 7 eliminates the clutter in dimming process, amplifies voltage simultaneously；Voltage follow unit 8 amplifies the dim signal of output simulation to dim signal output unit 5；Dim signal output unit 5 exports dim signal；The civil power of input provides power supply through circuit control unit 6 for dimmer AC conversion apparatus；Power supply status is indicated by state indication unit 21 by display lamp.
As shown in Figure 2; overvoltage protection filter unit 1 includes safety element, pressure cell, common mode inductance and the safety electric capacity being sequentially connected with; the ac signal of input is protected by safety element and pressure cell, and ac signal is filtered by common mode inductance and safety electric capacity again.As shown in Figure 3, ACDC converting unit 2 includes rectifier bridge stack, commutation capacitor, power supply chip and the high frequency transformer being sequentially connected with, input voltage obtains high direct voltage after rectifier bridge stack and commutation capacitor rectifying and wave-filtering, is converted to the DC voltage of low pressure via import power supply chip and high frequency transformer.As shown in Figure 4,7 continually varying analog voltages of filter and amplification unit, after capacitor filtering and operational amplifier Q1 amplify, obtain stable continually varying dimmer voltage；Voltage follow unit 8 is formed voltage follow output circuit by three groups of operational amplifiers Q2, Q3 and Q4, amplifies the dim signal of output simulation, it is provided that enough dim signals of power.
As preferred implementation of the present utility model, circuit control unit 6 is a relay, and the civil power live wire of input is connected with overvoltage protection filter unit 1 through relay, provides power supply for dimmer AC conversion apparatus.When normally working, control relay Guan Bi, it is provided that alternating current power supply；When needs are changed element or occur dangerous, relay can be controlled and disconnect, cut off alternating current power supply, play a protective role, improve safety.
In addition; as preferred implementation of the present utility model; as shown in Figure 2; a switch S1 it is additionally provided with between civil power and overvoltage protection filter unit 1; dimming unit 4 includes a rotational potentiometer; described switch S1 and rotational potentiometer are gang switch: when the rotational potentiometer opening dimming unit 4 starts to dim, and switch S1 closes along with opening of rotational potentiometer, and the alternating current of input is that subsequent conditioning circuit is powered；When closing the rotational potentiometer of dimming unit 4, switch S1 disconnects along with the closedown of rotational potentiometer, cuts off alternating current input, can cut off the electricity supply when not working simultaneously, can be further ensured that the safety of circuit.
Operation principle of the present utility model is described below in detail: pass through rotational potentiometer, S1 is closed, the logical upper civil power of product, the live wire of civil power connected by the relay of control circuit control unit 6, power supply is provided to LED light modulation dimmer, alternating current obtains high direct voltage through overvoltage protection filter unit 1, DC low-voltage 12V is obtained again through ACDC converting unit 2 blood pressure lowering, state indication unit 21 shows state, the further voltage stabilizing of voltage regulation unit 3, obtain highly stable DC voltage, this voltage is converted to continually varying dimmer voltage by dimming unit 4, the voltage of 0-10V is just obtained after filtering after amplifying unit 7, this voltage amplification power just can be exported the 0-10V of direct current and simulate dim signal by voltage follow unit 8 again.When needs are changed element or occur dangerous, control relay, make relay disconnect, disconnect alternating current power supply.
It is above the preferably enforcement of utility model is illustrated, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement on the premise of this utility model spirit, and modification or the replacement of these equivalents are all contained in the application claim limited range.
Claims (10)
1. the AC conversion apparatus of a dimmer; including the overvoltage protection filter unit (1) electrically connected with city successively, ACDC converting unit (2), voltage regulation unit (3), dimming unit (4) and dim signal output unit (5); it is characterized in that: also include that a circuit control unit (6), described overvoltage protection filter unit (1) are electrically connected with city by circuit control unit (6).
The AC conversion apparatus of a kind of dimmer the most according to claim 1, it is characterised in that: also it is connected with filter and amplification unit (7) and voltage follow unit (8) between described dimming unit (4) and dim signal output unit (5) in turn.
The AC conversion apparatus of a kind of dimmer the most according to claim 1, it is characterised in that: described ACDC converting unit (2) is also associated with a state indication unit (21).
The AC conversion apparatus of a kind of dimmer the most according to claim 1, it is characterised in that: described ACDC converting unit (2) includes rectifier bridge stack, commutation capacitor, power supply chip and the high frequency transformer being sequentially connected with.
The AC conversion apparatus of a kind of dimmer the most according to claim 1, it is characterised in that: described overvoltage protection filter unit (1) includes safety element, pressure cell, common mode inductance and the safety electric capacity being sequentially connected with.
The AC conversion apparatus of a kind of dimmer the most according to claim 1; it is characterized in that: between civil power and overvoltage protection filter unit (1), be additionally provided with a switch S1; dimming unit (4) includes a rotational potentiometer, and described switch S1 and rotational potentiometer are gang switch.
The AC conversion apparatus of a kind of dimmer the most according to claim 2, it is characterised in that: described filter and amplification unit (7) includes that an operational amplifier, described voltage follow unit (8) include at least one operational amplifier.
The AC conversion apparatus of a kind of dimmer the most according to claim 7, it is characterised in that: the operational amplifier that described filter and amplification unit (7) and voltage follow unit (8) are used is LM324 operational amplifier.
The AC conversion apparatus of a kind of dimmer the most according to claim 4, it is characterised in that: the power supply chip of described ACDC converting unit (2) uses AP8012 power supply chip.
The AC conversion apparatus of a kind of dimmer the most according to claim 1, it is characterised in that: described circuit control unit (6) is a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620116018.2U CN205491316U (en) | 2016-02-04 | 2016-02-04 | Inverter device of light modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620116018.2U CN205491316U (en) | 2016-02-04 | 2016-02-04 | Inverter device of light modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491316U true CN205491316U (en) | 2016-08-17 |
Family
ID=56675189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620116018.2U Expired - Fee Related CN205491316U (en) | 2016-02-04 | 2016-02-04 | Inverter device of light modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205491316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963373A (en) * | 2017-12-22 | 2019-07-02 | 明纬(广州)电子有限公司 | A kind of dimming input circuit |
-
2016
- 2016-02-04 CN CN201620116018.2U patent/CN205491316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963373A (en) * | 2017-12-22 | 2019-07-02 | 明纬(广州)电子有限公司 | A kind of dimming input circuit |
| CN109963373B (en) * | 2017-12-22 | 2021-11-09 | 明纬(广州)电子有限公司 | Dimming input circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103298221B (en) | Dimming circuit and method of LED (Light Emitting Diode) lighting lamp | |
| CN204423880U (en) | A kind of LED backlight drive circuit of liquid crystal TV set | |
| CN201657400U (en) | LED dimming controller | |
| CN201303444Y (en) | Two-wire LED control device capable of accepting various light dimming methods | |
| CN205408247U (en) | LED light color temperature adjustment control system | |
| CN205491316U (en) | Inverter device of light modulator | |
| CN203872402U (en) | Circuit structure of multi-gear light-adjustable LED driving power supply | |
| CN204859686U (en) | LED lamp with adjustable luminance | |
| CN203872404U (en) | Circuit structure of LED driving power supply capable of realizing light adjustment and color adjustment through silicon controlled dimmer | |
| CN203872403U (en) | Circuit structure of double-switch light-adjusting color-adjusting LED driving power supply | |
| CN206196097U (en) | Lighting device , control chip and linear dimming system | |
| CN106292826B (en) | A kind of list firewire on-off control system and control method | |
| CN109429405A (en) | A kind of intelligent light controller | |
| CN108260263A (en) | A kind of method and communicating circuit using ac power cable communication | |
| CN208806991U (en) | A kind of constant pressure dimming power source and light adjusting system for lighting device | |
| CN203027562U (en) | Digital phase modulation device | |
| CN106851896A (en) | A kind of LED bluetooth light adjusting circuit | |
| CN207638940U (en) | LED light string control system | |
| CN207022253U (en) | A kind of LED drive power based on DC level automatic conversion pulsewidth modulation | |
| CN206061223U (en) | A kind of input voltage light adjusting circuit | |
| CN207053836U (en) | A kind of LED high-voltage driving circuit with dimming function | |
| CN205160835U (en) | Multi -functional unreal image assembled lamp | |
| CN207443182U (en) | LED street lamp central power supply system | |
| CN204948421U (en) | A kind of short-circuit protection circuit and intelligent dimming color-temperature regulating drive system | |
| CN201290189Y (en) | Light-adjusting circuit of LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |