CN211090056U - Silicon controlled rectifier regulating circuit and L ED lamp dimming device - Google Patents
Silicon controlled rectifier regulating circuit and L ED lamp dimming device Download PDFInfo
- Publication number
- CN211090056U CN211090056U CN201922243179.4U CN201922243179U CN211090056U CN 211090056 U CN211090056 U CN 211090056U CN 201922243179 U CN201922243179 U CN 201922243179U CN 211090056 U CN211090056 U CN 211090056U
- Authority
- CN
- China
- Prior art keywords
- resistor
- silicon controlled
- controlled rectifier
- signal
- circuit
- 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.)
- Active
Links
Images
Abstract
The utility model provides a silicon controlled rectifier regulating circuit and L ED lamp light adjusting device, this silicon controlled rectifier regulating circuit include silicon controlled rectifier detection circuitry and be connected to silicon controlled rectifier detection circuitry's signal conversion module, silicon controlled rectifier detection circuitry is used for being connected to the silicon controlled rectifier regulator, in order to detect silicon controlled rectifier regulator's regulation signal, and will regulation signal conversion becomes pulse width modulation signal, generates voltage signal transmission after the filtering extremely signal conversion module, the signal conversion module is used for being connected to power module, is used for the basis voltage signal generates the duty cycle instruction and sends to power module, so that power module basis duty cycle instruction adjusts output, the utility model discloses a silicon controlled rectifier regulating circuit under wide input voltage drive, can effectively to the interference that the withstand voltage change brought, keeps adjusting power module output accuracy to improve user's experience degree.
Description
Technical Field
The utility model relates to an electronic circuit technical field particularly, relates to a silicon controlled rectifier regulating circuit and L ED lamp dimming device.
Background
In the existing silicon controlled rectifier regulating circuit, the average value of the chopping amplitude of the silicon controlled rectifier is generally taken to obtain the conduction angle of the silicon controlled rectifier, so that the output of a power supply module is correspondingly regulated. The silicon controlled rectifier regulating circuit adopting the mode has very low capability of resisting the interference caused by the change of the input voltage, namely under the condition that the conduction angle is not changed, when the input voltage is changed, the chopping amplitude of the silicon controlled rectifier is influenced, so that the final regulation of the output of the power supply module is influenced, the accurate regulation of the output of the power supply module cannot be kept, and the experience of a user is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a silicon controlled rectifier regulating circuit and L ED lamp light adjusting device, this silicon controlled rectifier regulating circuit, under wide input voltage drive, can effectively keep adjusting power module output accuracy to the interference that the change of withstanding voltage brought to improve user's experience degree.
In order to achieve the above object, the utility model adopts the following technical scheme:
a silicon controlled rectifier regulating circuit comprises a silicon controlled rectifier detection circuit and a signal conversion module connected to the silicon controlled rectifier detection circuit;
the silicon controlled rectifier detection circuit is used for being connected to a silicon controlled rectifier regulator to detect a regulating signal of the silicon controlled rectifier regulator, converting the regulating signal into a pulse width modulation signal, filtering the pulse width modulation signal to generate a voltage signal and transmitting the voltage signal to the signal conversion module;
the signal conversion module is used for being connected to a power supply module and generating a duty ratio instruction according to the voltage signal and sending the duty ratio instruction to the power supply module so that the power supply module adjusts and outputs the duty ratio instruction.
Preferably, in the silicon controlled rectifier regulating circuit, the silicon controlled rectifier detecting circuit comprises a chopper unit, a conversion unit and a filtering unit which are connected in sequence;
the chopper unit is used for being connected with the silicon controlled rectifier regulator and reducing the regulating signal of the silicon controlled rectifier regulator into a half sine wave signal with a preset voltage range and a preset frequency;
the conversion unit is used for receiving the half sine wave signal and converting the half sine wave signal into the pulse width modulation signal;
the filtering unit is used for receiving the pulse width modulation signal and filtering the pulse width modulation signal to generate the voltage signal.
Preferably, in the silicon controlled rectifier regulating circuit, the chopper unit includes a first resistor, a second resistor, a third resistor and a fourth resistor connected in series in sequence, and one end of the first resistor is used for being connected to the silicon controlled rectifier regulator, and one end of the fourth resistor is grounded.
Preferably, the thyristor regulating circuit further comprises a bridge rectifier circuit, and the first resistor is connected to the thyristor regulator through the bridge rectifier circuit.
Preferably, in the silicon controlled rectifier adjustment circuit, the conversion unit includes a fifth resistor and a triode;
one end of the fifth resistor is connected with the collector of the triode, and the other end of the fifth resistor is used for receiving external driving voltage;
and the base electrode of the triode is used for being connected with the chopping unit, and the emitting electrode of the triode is grounded.
Preferably, in the silicon controlled rectifier adjusting circuit, the silicon controlled rectifier detecting circuit further includes a sixth resistor, and the triode is an NPN-type triode;
and the base electrode of the triode is connected between the third resistor and the fourth resistor through the sixth resistor.
Preferably, in the silicon controlled rectifier regulating circuit, the filtering unit is a two-stage RC filtering unit.
Preferably, in the silicon controlled rectifier adjustment circuit, the second stage RC filtering unit includes a seventh resistor, an eighth resistor, a first capacitor, and a second capacitor;
one end of the seventh resistor is connected to the collector of the triode, and the other end of the seventh resistor is connected to the emitter of the triode through the first capacitor;
one end of the eighth resistor is connected between the seventh resistor and the first capacitor, and the other end of the eighth resistor is connected to the emitter of the triode through the second capacitor and is connected to the signal conversion module.
Preferably, in the silicon controlled rectifier adjustment circuit, the second stage RC filtering unit further includes a ninth resistor and a third capacitor, and the second capacitor is further connected in parallel with the ninth resistor and the third capacitor.
The utility model also provides an L ED lamp dimming device, include silicon controlled rectifier regulating circuit.
The utility model provides a silicon controlled rectifier regulating circuit, which comprises a silicon controlled rectifier detection circuit and a signal conversion module connected to the silicon controlled rectifier detection circuit; the silicon controlled rectifier detection circuit is used for being connected to a silicon controlled rectifier regulator to detect a regulating signal of the silicon controlled rectifier regulator, converting the regulating signal into a pulse width modulation signal, filtering the pulse width modulation signal to generate a voltage signal and transmitting the voltage signal to the signal conversion module; the signal conversion module is used for being connected to a power supply module and generating a duty ratio instruction according to the voltage signal and sending the duty ratio instruction to the power supply module so that the power supply module adjusts and outputs the duty ratio instruction. The utility model discloses a silicon controlled rectifier regulating circuit, under wide input voltage drive, can effectively keep adjusting power module output accuracy to the interference that the withstand voltage change brought to improve user's experience degree.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention. Like components are numbered similarly in the various figures.
Fig. 1 is a schematic structural diagram of a silicon controlled rectifier regulating circuit provided in embodiment 1 of the present invention;
fig. 2 is a waveform diagram of a modulation signal converted into a pwm signal according to embodiment 1 of the present invention;
fig. 3 is a schematic circuit diagram of a thyristor regulation circuit provided in embodiment 2 of the present invention.
Description of the main element symbols:
100-a thyristor regulation circuit; 110-a thyristor detection circuit; 120-a signal conversion module; 101-a thyristor regulator; 102-a power supply module;
300-a thyristor regulation circuit; 310-thyristor detection circuit; 320-a signal conversion module; 301-a thyristor regulator; 302-a power supply module; 303-a bridge rectifier circuit;
311-a chopper unit; 312-a conversion unit; 313-a filtering unit;
001-first resistance; 002-a second resistance; 003-third resistance; 004-fourth resistance; 005-fifth resistance; 006-triode; 007-sixth resistance; 008-a seventh resistor; 009-eighth resistance; 010-a first capacitance; 011-second capacitance; 012-ninth resistor; 013 — third capacitance.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of a silicon controlled rectifier regulating circuit provided in embodiment 1 of the present invention.
The thyristor regulation circuit 100 comprises a thyristor detection circuit 110 and a signal conversion module 120 connected to the thyristor detection circuit;
the thyristor detection circuit 110 is configured to be connected to the thyristor regulator 101, so as to detect a regulation signal of the thyristor regulator 101, convert the regulation signal into a pulse width modulation signal, generate a voltage signal after filtering, and transmit the voltage signal to the signal conversion module 120;
in the embodiment of the present invention, the silicon controlled rectifier 101 adopts a phase control method to realize the voltage regulation, and the thyristor characteristic shows that when the thyristor is applied with a forward anode voltage and a proper forward control voltage, the thyristor is turned on; this conduction is maintained even after the gate control voltage is removed, and is not turned off until the reverse anode voltage is applied or the anode current is less than the holding current of the thyristor itself. For example, the thyristor dimmer utilizes the characteristic of the thyristor to realize the leading edge triggered phase control voltage regulation. At a certain time t1 (or a certain phase angle wt1) after the sine wave ac crosses zero, a trigger pulse is applied to the thyristor control electrode to turn on the thyristor, and this turn-on will be maintained until the sine wave positive half cycle is over according to the characteristics of the thyristor regulator 101 described above. Therefore, in the positive half cycle (namely the interval from 0 to p) of the sine wave, the controllable silicon is not conducted in the range from 0 to wt1, the range is called as a control angle and is commonly represented by a; and the thyristor conducts between wt1 and p, a range known as the conduction angle, commonly denoted as j. Similarly, in the negative half cycle of the sine wave alternating current, the other thyristor (for two unidirectional thyristors in anti-parallel connection or bidirectional thyristors) in reverse connection applies a trigger pulse at the time t2 (namely the phase angle wt2) to conduct the thyristor. And controlling the conduction of the sine wave in each half period in such a way to obtain the same conduction angle. By changing the application time (or phase) of the trigger pulse, the magnitude of the conduction angle j (or control angle a) can be changed, and the lamp will be brighter as the dimmer outputs higher voltages as the conduction angle is larger.
The embodiment of the utility model provides an in, the regulating signal that this silicon controlled rectifier detection circuitry 110 received carries out the conduction angle waveform signal after the silicon controlled rectifier chopped wave promptly for above-mentioned sine wave, but because silicon controlled rectifier regulator 101 is the lug connection on the live wire, consequently this regulating signal's voltage value is bigger, consequently can be provided with chopper circuit in silicon controlled rectifier detection circuitry 110, the wave form with the regulating signal carries out the scaling-down, also reduce the voltage of regulating signal to predetermineeing the voltage scope, for example, can reduce to 0 to 5V voltage scope, the wave form and the frequency of signal keep unchanged, be the conduction angle waveform signal by sine wave corner cut.
The embodiment of the utility model provides an in, after carrying out chopping to the accommodate signal, still carry out pulse conversion to accommodate signal and handle, convert this accommodate signal that has the conduction angle into pulse width modulation signal, as shown in the wave form diagram of fig. 2, ch1 is the accommodate signal, and ch2 is pulse width modulation signal. When the conduction angle of the regulating signal is not changed, the driving voltage of the thyristor regulator 101 is changed, and the pulse width modulation signal is not changed greatly, so that the thyristor regulating circuit 100 has the capability of resisting voltage change interference. For example, in the thyristor regulation circuit 100, the driving voltage is a wide input voltage of AC198 to 264V, and when the conduction angle of the thyristor is not changed, that is, when the thyristor is not regulated, the voltage is increased from 198V to 264V, which does not affect the duty ratio of the current pulse width modulation signal.
The embodiment of the utility model provides an in, after being converted silicon controlled rectifier 101's regulation signal into pulse width modulation signal, still will carry out filtering to this pulse width modulation signal and handle, specifically, can use the mode of resistance and electric capacity series connection to carry out RC filtering and handle. The pwm signal may be further processed by multi-stage filtering to further stabilize the voltage signal subsequently output to the signal conversion module 120. After the filtering process, the pwm signal may be converted into a voltage signal having a preset voltage range, for example, the voltage signal may be a voltage signal of 0 to 5V, and the range of 0 to 5V represents a dimming range of 0 to 100%, so that the signal conversion module 120 converts the detected voltage signal into a corresponding duty command, thereby controlling the output of the power module.
The signal conversion module 120 is configured to be connected to the power supply module 102, and configured to receive the filtered voltage signal, generate a duty ratio instruction according to the voltage signal, and send the duty ratio instruction to the power supply module 102, so that the power supply module 102 adjusts and outputs the duty ratio instruction according to the duty ratio instruction.
The embodiment of the utility model provides an in, signal conversion module 120 can be MCU (Microcontroller Unit) or singlechip, after the size of detected voltage signal, converts corresponding duty cycle instruction into to send to power module 102, thereby the output of control power, for example power output when L ED lamp, just can control the luminance of L ED lamp, realizes that L ED lamp adjusts in 0 to 100% luminance.
The embodiment of the utility model provides an in, above-mentioned silicon controlled rectifier detection circuitry 110 can be the pulse width modulation signal with this regulation signal conversion after receiving silicon controlled rectifier regulator 101's regulation signal, and this pulse width modulation signal is under the unchangeable condition of conduction angle of silicon controlled rectifier regulator 101, when the input voltage changes in the face of silicon controlled rectifier regulator 101, and pulse width modulation signal still can remain unchanged, does not influence follow-up regulation to power module 102 output. That is, the thyristor regulation circuit 100 of the present application can effectively resist the interference caused by voltage variation and keep the accurate regulation of the output of the power module 102 under the drive of the wide input voltage, thereby improving the experience of the user.
Example 2
Fig. 3 is a schematic circuit diagram of a thyristor regulation circuit provided in embodiment 2 of the present invention.
The thyristor regulation circuit 300 comprises a thyristor detection circuit 310 and a signal conversion module 320 connected to the thyristor detection circuit;
the thyristor detection circuit 310 is configured to be connected to the thyristor regulator 301, detect a regulation signal of the thyristor regulator 301, convert the regulation signal into a pulse width modulation signal, filter the pulse width modulation signal, generate a voltage signal, and transmit the voltage signal to the signal conversion module 320;
the signal conversion module 320 is configured to be connected to the power supply module 302, and configured to receive the filtered voltage signal, generate a duty ratio instruction according to the voltage signal, and send the duty ratio instruction to the power supply module 302, so that the power supply module 302 adjusts and outputs the duty ratio instruction according to the duty ratio instruction.
The thyristor detection circuit 310 comprises a chopper unit 311, a conversion unit 312 and a filter unit 313 which are connected in sequence;
the chopper unit 311 is configured to be connected to the silicon controlled regulator 301, and configured to reduce the adjustment signal of the silicon controlled regulator 301 to a half sine wave signal with a preset voltage range and a preset frequency;
the converting unit 312 is configured to be connected to the chopping unit 311, and configured to receive the half sine wave signal and convert the half sine wave signal into the pulse width modulation signal;
the filtering unit 313 is configured to be connected to the converting unit 312, and configured to receive the pulse width modulation signal, perform filtering processing on the pulse width modulation signal, and generate the voltage signal.
The chopper unit 311 comprises a first resistor 001, a second resistor 002, a third resistor 003 and a fourth resistor 004 which are sequentially connected in series;
one end of the first resistor 001 is used for being connected to the scr 301, and the other end of the first resistor is connected in series with the second resistor 002, the third resistor 003 and the fourth resistor 004 in sequence;
one end of the fourth resistor 004 is used for grounding, and the other end of the fourth resistor is connected with the third resistor 003.
The embodiment of the present invention provides an embodiment, after the first resistor 001, the second resistor 002, the third resistor 003 and the fourth resistor 004 are connected in series to divide voltage, the waveform of the adjustment signal can be reduced to a predetermined range, for example, the adjustment signal of 100Hz can be reduced to 0 to 5V, or the adjustment signal of 120Hz can be reduced to 0 to 5V. Specifically, when the wide input voltage of the triac regulator 301 is AC 198V-264V, the first resistor 001, the second resistor 002, the third resistor 003, and the fourth resistor 004 may be 270k Ω, and 10k Ω, respectively.
The thyristor regulating circuit 300 further comprises a bridge rectifier circuit 303, and the first resistor 001 is connected to the thyristor regulator 301 through the bridge rectifier circuit 303.
The embodiment of the utility model provides an in, still be provided with bridge rectifier circuit 303 between silicon controlled rectifier detection circuitry 310 and silicon controlled rectifier regulator 301, this bridge rectifier circuit 303 can have the sine wave rectification of corner cut with the adjusting signal for having the half sine wave of corner cut, also be the alternating current waveform conversion with the adjusting signal direct current waveform to subsequent signal conversion handles.
The conversion unit 312 includes a fifth resistor 005 and a transistor 006;
one end of the fifth resistor 005 is connected to the collector of the transistor 006, and the other end is used for receiving an external driving voltage;
the base of the transistor 006 is used to connect to the chopper unit 311, and the emitter of the transistor 006 is grounded.
In the embodiment of the present invention, the silicon controlled rectifier detection circuit 310 further includes a sixth resistor 007, and the triode 006 is an NPN-type triode 006; the base of the transistor 006 is connected between the third resistor 003 and the fourth resistor 004 via a sixth resistor 007. The transistor 006 receives a driving power provided from the outside, and is turned on when the base is at a high level, and the collector is at a low potential with respect to the ground, so that the on-off state of the transistor 006 corresponds to the on-off state of the thyristor, and the adjustment signal is converted into a pulse width modulation signal, wherein the duty ratio of the pulse width modulation signal is changed along with the change of the half sine wave cut angle of the adjustment signal, and thus the duty ratio ranges from 0 to 100%.
In the embodiment of the present invention, the filtering unit 313 is a second-level RC filtering unit 313. The second-stage RC filtering unit 313 comprises a seventh resistor 008, an eighth resistor 009, a first capacitor 010 and a second capacitor 011;
one end of the seventh resistor 008 is connected to the collector of the transistor 006, and the other end is connected to the emitter of the transistor 006 through the first capacitor 010;
the eighth resistor 009 has one end connected between the seventh resistor 008 and the first capacitor 010, and the other end connected to the emitter of the transistor 006 through the second capacitor 011 and connected to the signal conversion module 320.
The embodiment of the utility model provides an in, above-mentioned second grade RC filtering unit 313 can convert pulse width modulation signal into the voltage signal of predetermineeing range voltage to transmit to signal conversion module 320, so that signal conversion module 320 detects silicon controlled rectifier regulator 301's conduction angle according to voltage signal, and carry out power module 302's output control. For example, the voltage range of the voltage signal is 0 to 5V, and accordingly, the signal conversion module 320 may convert the voltage signal into a duty ratio command of 0 to 100% and transmit the duty ratio command to the power module 302 to control the output of the power module 302.
In the embodiment of the present invention, the second-stage RC filtering unit 313 further includes a ninth resistor 012 and a third capacitor 013, the second capacitor 011 is further connected in parallel with the ninth resistor 012 and the third capacitor 013.
The utility model also provides an L ED lamp dimming device, silicon controlled rectifier regulating circuit including above-mentioned embodiment.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A silicon controlled rectifier regulating circuit is characterized by comprising a silicon controlled rectifier detection circuit and a signal conversion module connected to the silicon controlled rectifier detection circuit;
the silicon controlled rectifier detection circuit is used for being connected to a silicon controlled rectifier regulator to detect a regulating signal of the silicon controlled rectifier regulator, converting the regulating signal into a pulse width modulation signal, filtering the pulse width modulation signal to generate a voltage signal and transmitting the voltage signal to the signal conversion module;
the signal conversion module is used for being connected to a power supply module and generating a duty ratio instruction according to the voltage signal and sending the duty ratio instruction to the power supply module so that the power supply module adjusts and outputs the duty ratio instruction.
2. The silicon controlled rectifier regulating circuit according to claim 1, wherein the silicon controlled rectifier detection circuit comprises a chopping unit, a conversion unit and a filtering unit which are connected in sequence;
the chopper unit is used for being connected with the silicon controlled rectifier regulator and reducing the regulating signal of the silicon controlled rectifier regulator into a half sine wave signal with a preset voltage range and a preset frequency;
the conversion unit is used for receiving the half sine wave signal and converting the half sine wave signal into the pulse width modulation signal;
the filtering unit is used for receiving the pulse width modulation signal and filtering the pulse width modulation signal to generate the voltage signal.
3. The silicon controlled rectifier regulating circuit according to claim 2, wherein the chopper unit comprises a first resistor, a second resistor, a third resistor and a fourth resistor which are connected in series in sequence, and one end of the first resistor is used for being connected to the silicon controlled rectifier regulator, and one end of the fourth resistor is grounded.
4. The scr regulator of claim 3, further comprising a bridge rectifier circuit, wherein the first resistor is connected to the scr regulator through the bridge rectifier circuit.
5. The silicon controlled rectifier regulation circuit of claim 3 wherein the switching unit comprises a fifth resistor and a triode;
one end of the fifth resistor is connected with the collector of the triode, and the other end of the fifth resistor is used for receiving external driving voltage;
and the base electrode of the triode is used for being connected with the chopping unit, and the emitting electrode of the triode is grounded.
6. The silicon controlled rectifier regulation circuit of claim 5 wherein the silicon controlled rectifier detection circuit further comprises a sixth resistor, the transistor being an NPN transistor;
and the base electrode of the triode is connected between the third resistor and the fourth resistor through the sixth resistor.
7. The SCR regulator circuit of claim 5, wherein said filter unit is a two-stage RC filter unit.
8. The SCR regulator circuit of claim 7, wherein said two stage RC filter unit comprises a seventh resistor, an eighth resistor, a first capacitor, and a second capacitor;
one end of the seventh resistor is connected to the collector of the triode, and the other end of the seventh resistor is connected to the emitter of the triode through the first capacitor;
one end of the eighth resistor is connected between the seventh resistor and the first capacitor, and the other end of the eighth resistor is connected to the emitter of the triode through the second capacitor and is connected to the signal conversion module.
9. The scr regulating circuit of claim 8, wherein the second stage RC filtering unit further comprises a ninth resistor and a third capacitor, and the second capacitor is further connected in parallel with the ninth resistor and the third capacitor.
10. An L ED lamp dimming device, comprising the SCR regulator circuit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243179.4U CN211090056U (en) | 2019-12-13 | 2019-12-13 | Silicon controlled rectifier regulating circuit and L ED lamp dimming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243179.4U CN211090056U (en) | 2019-12-13 | 2019-12-13 | Silicon controlled rectifier regulating circuit and L ED lamp dimming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211090056U true CN211090056U (en) | 2020-07-24 |
Family
ID=71631821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922243179.4U Active CN211090056U (en) | 2019-12-13 | 2019-12-13 | Silicon controlled rectifier regulating circuit and L ED lamp dimming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211090056U (en) |
-
2019
- 2019-12-13 CN CN201922243179.4U patent/CN211090056U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10285229B2 (en) | LED driving circuit having SCR dimmer, circuit module and control method thereof | |
| US10433384B2 (en) | LED driver with silicon controlled dimmer, apparatus and control method thereof | |
| US8754584B2 (en) | SCR dimming circuit and method | |
| CN108337764B (en) | Constant voltage output AC phase dimmable LED driver | |
| US9055629B2 (en) | SCR dimming circuit and method | |
| CN110113841B (en) | LED driving circuit with silicon controlled rectifier dimmer, circuit module and control method | |
| CN109041348B (en) | Adaptive circuit module, LED driving circuit with silicon controlled rectifier dimmer and method | |
| US10015851B2 (en) | Ballast circuit | |
| WO2016044351A1 (en) | Multi-mode control for solid state lighting | |
| CN102083254A (en) | WLED driving circuit and driving method suitable for three-terminal controlled silicon dimmer | |
| US9480111B2 (en) | Apparatus and method for driving semiconductor light-emitting device assembly | |
| CN110582136A (en) | Dimmable LED drive circuit and control method | |
| US10461648B2 (en) | Alternating current step-down circuit | |
| CN108848598B (en) | Bleeder module for silicon controlled rectifier dimmer, LED driving circuit and driving method | |
| CN109922569B (en) | LED dimming control system and method | |
| CN211090056U (en) | Silicon controlled rectifier regulating circuit and L ED lamp dimming device | |
| JP2012243498A (en) | Led bulb | |
| CN203072213U (en) | A phase detecting circuit suitable for a single-stage flyback Leading edge and trailing edge phase-cut light adjusting power supply | |
| CN103874272B (en) | A kind of LED dimming power sources | |
| CN112398384B (en) | Control device for direct current motor | |
| CN209964330U (en) | A bleeder module, LED drive circuit for silicon controlled rectifier dimmer | |
| CN203072212U (en) | A LED light-adjusting power supply | |
| CN114513877B (en) | LED driving method, circuit and LED lighting device | |
| CN107707227A (en) | Optical encoder signal input circuit and the frequency converter comprising the circuit | |
| US11743988B2 (en) | Power adjusting circuit, LED power supply and LED luminaire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |