CN219843751U - Silicon controlled rectifier dimming control circuit - Google Patents
Silicon controlled rectifier dimming control circuit Download PDFInfo
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- CN219843751U CN219843751U CN202321093035.5U CN202321093035U CN219843751U CN 219843751 U CN219843751 U CN 219843751U CN 202321093035 U CN202321093035 U CN 202321093035U CN 219843751 U CN219843751 U CN 219843751U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 123
- 239000010703 silicon Substances 0.000 title claims abstract description 123
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000005286 illumination Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 34
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
The utility model relates to the technical field of dimming control, in particular to a silicon controlled rectifier dimming control circuit, which comprises a compatible silicon controlled rectifier control module, wherein the compatible silicon controlled rectifier control module comprises a silicon controlled rectifier LED constant current control chip IC1, a silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 and a constant current output end of the silicon controlled rectifier LED constant current control chip IC1 are respectively and electrically connected with a wall switch switching module, whether a system is connected with a silicon controlled rectifier dimmer is judged by detecting the change rate of the voltage of the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1, and when no dimmer is detected, the compatible silicon controlled rectifier control module closes a bleeder current; when the light modulator is detected to be connected, the compatible silicon controlled rectifier control module can start the bleeder current, and maintain the normal work of the silicon controlled rectifier in the light modulation process, so that the light modulation compatibility of the whole lamp is improved, and the compatible silicon controlled rectifier light modulation under the main illumination and small night lamp modes is realized.
Description
Technical Field
The utility model relates to the technical field of dimming control, in particular to a silicon controlled rectifier dimming control circuit.
Background
In the conventional DOB (english is called drive on board, i.e. the drive and the light source are both placed on the light source board), since the chip in the wall switch switching module generally detects the voltage change or VCC voltage change after the common mains supply or the rectifier bridge, after the thyristor is connected, the input voltage is switched, especially the thyristor is adjusted to the low end, the input voltage of the whole lamp is very low, the chip cannot normally detect the voltage change, or the VCC power supply is insufficient after the phase switching, and the gear cannot be normally switched, so that the main lighting and the small night lamp mode cannot be switched normally through the switch or the dimming cannot be normally performed after the switching.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problems to be solved by the utility model are as follows: the silicon controlled rectifier dimming control circuit is compatible with silicon controlled rectifier dimming in both main illumination and small night lamp modes.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a silicon controlled rectifier dimming control circuit, includes the wall switch module of setting on DOB device, wall switch module is connected with the main illumination light source and little night-light source electricity of peripheral hardware respectively, still be equipped with compatible silicon controlled rectifier control module on the DOB device, compatible silicon controlled rectifier control module includes silicon controlled rectifier LED constant current control chip IC1, silicon controlled rectifier LED constant current control chip IC 1's silicon controlled rectifier voltage detection end and silicon controlled rectifier LED constant current control chip IC 1's constant current output all are connected with wall switch module electricity respectively.
Further, the compatible silicon controlled rectifier control module further comprises a resistor RS1, a resistor RS2, a resistor RS3 and a resistor R5, the model of the silicon controlled rectifier LED constant current control chip IC1 is SM2196, one end of the resistor RS1 is electrically connected with a third pin of the silicon controlled rectifier LED constant current control chip IC1, the other end of the resistor RS1 is electrically connected with one end of the resistor RS2 and one end of the resistor RS3 respectively, the other end of the resistor RS2 is electrically connected with the other end of the resistor RS3, the other end of the resistor RS2 and the other end of the resistor RS3 are grounded, the other end of the resistor RS3 is electrically connected with a fourth pin of the silicon controlled rectifier LED constant current control chip IC1, one end of the resistor R5 is electrically connected with a fifth pin of the silicon controlled rectifier LED constant current control chip IC1, and a ninth pin of the silicon controlled rectifier LED constant current control chip IC1 is grounded.
Further, the compatible silicon controlled rectifier control module further comprises a resistor R1, one end of the resistor R1 is electrically connected with the first pin of the silicon controlled rectifier LED constant current control chip IC1, and the other end of the resistor R1 is electrically connected with the wall switch switching module.
Further, the wall switch switching module comprises a chip IC2, the model of the chip IC2 is SM2212, and an eighth pin of the chip IC2 is electrically connected with a silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC 1.
Further, the wall switch switching module further includes a resistor R2, a capacitor C1, and a capacitor C2, where one end of the resistor R2 is electrically connected to one end of the capacitor C1 and the first pin of the chip IC2, and the other end of the resistor R2 is electrically connected to the other end of the capacitor C1, the other end of the capacitor C2, and the ninth pin of the chip IC 2.
Further, the wall switch switching module further includes a resistor RS4 and a resistor RS5, one end of the resistor RS4 is electrically connected with the third pin of the chip IC2, the other end of the resistor RS4 is electrically connected with one end of the resistor RS5 and the ninth pin of the chip IC2, and the other end of the resistor RS5 is electrically connected with the fourth pin of the chip IC 2.
Further, the wall switch switching module further comprises a resistor R3, one end of the resistor R3 is electrically connected with an eighth pin of the chip IC2, and the other end of the resistor R3 is electrically connected with a silicon controlled voltage detection end of the silicon controlled LED constant current control chip IC 1.
Further, the LED constant current control device further comprises a dial color temperature control module, wherein the dial color temperature control module is respectively and electrically connected with the chip high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1 and the wall switch switching module, and the dial color temperature control module is electrically connected with a main illumination light source of the peripheral.
Further, the dial color temperature control module comprises a dial switch SW1, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R14, wherein one end of the resistor R7 is electrically connected with the fourth end of the dial switch SW1, the other end of the resistor R7 is electrically connected with one end of the resistor R8, the other end of the resistor R8 is electrically connected with one end of the resistor R9, one end of the resistor R10, the first end of the dial switch SW1, the second end of the dial switch SW1 and a main illumination light source of a peripheral, one end of the resistor R11 is electrically connected with the third end of the dial switch SW1, the other end of the resistor R11 is electrically connected with one end of the resistor R12, the other end of the resistor R12 is electrically connected with one end of the resistor R14, the fifth end of the dial switch SW1 and the main illumination light source of the peripheral, the other end of the resistor R14 is electrically connected with one end of the resistor R13, and the other end of the resistor SW 13 is electrically connected with the first end of the dial switch SW 1.
Further, the device also comprises a rectifying surge protection module, wherein the rectifying surge protection module is respectively and electrically connected with the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 and the constant current output end of the silicon controlled rectifier LED constant current control chip IC 1.
The utility model has the beneficial effects that:
the DOB device is provided with a compatible silicon controlled rectifier control module, the compatible silicon controlled rectifier control module comprises a silicon controlled rectifier LED constant current control chip IC1, a silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 is respectively and electrically connected with a wall switch switching module and a high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1, a constant current output end of the silicon controlled rectifier LED constant current control chip IC1 is electrically connected with the wall switch switching module, whether a system is connected with a silicon controlled rectifier dimmer is judged by detecting the change rate of the voltage of the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1, and when no dimmer is detected, the silicon controlled rectifier LED constant current control chip IC1 closes the bleeder current, so that loss is reduced, and system efficiency is improved; when the light modulator is detected to be connected, the thyristor LED constant current control chip IC1 can start the bleeder current, and the normal work of the thyristor in the light modulation process is maintained, so that the light modulation compatibility of the whole lamp is improved, and the light modulation of the compatible thyristor in the main illumination and small night lamp modes is realized.
Drawings
FIG. 1 is a block diagram showing a module connection of a thyristor dimming control circuit according to the present utility model;
FIG. 2 is a schematic circuit diagram of a SCR dimming control circuit according to the present utility model;
description of the reference numerals:
1. compatible silicon controlled rectifier control module; 2. a wall switch switching module; 3. a dial color temperature control module; 4. and the rectification surge protection module.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, the present utility model provides the following technical solutions:
the utility model provides a silicon controlled rectifier dimming control circuit, includes the wall switch module of setting on DOB device, wall switch module is connected with the main illumination light source and little night-light source electricity of peripheral hardware respectively, still be equipped with compatible silicon controlled rectifier control module on the DOB device, compatible silicon controlled rectifier control module includes silicon controlled rectifier LED constant current control chip IC1, silicon controlled rectifier LED constant current control chip IC 1's silicon controlled rectifier voltage detection end and silicon controlled rectifier LED constant current control chip IC 1's constant current output all are connected with wall switch module electricity respectively.
From the above description, the beneficial effects of the utility model are as follows:
the DOB device is provided with a compatible silicon controlled rectifier control module, the compatible silicon controlled rectifier control module comprises a silicon controlled rectifier LED constant current control chip IC1, a silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 is respectively and electrically connected with a wall switch switching module and a high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1, a constant current output end of the silicon controlled rectifier LED constant current control chip IC1 is electrically connected with the wall switch switching module, whether a system is connected with a silicon controlled rectifier dimmer is judged by detecting the change rate of the voltage of the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1, and when no dimmer is detected, the silicon controlled rectifier LED constant current control chip IC1 closes the bleeder current, so that loss is reduced, and system efficiency is improved; when the light modulator is detected to be connected, the thyristor LED constant current control chip IC1 can start the bleeder current, and the normal work of the thyristor in the light modulation process is maintained, so that the light modulation compatibility of the whole lamp is improved, and the light modulation of the compatible thyristor in the main illumination and small night lamp modes is realized.
Further, the compatible silicon controlled rectifier control module further comprises a resistor RS1, a resistor RS2, a resistor RS3 and a resistor R5, the model of the silicon controlled rectifier LED constant current control chip IC1 is SM2196, one end of the resistor RS1 is electrically connected with a third pin of the silicon controlled rectifier LED constant current control chip IC1, the other end of the resistor RS1 is electrically connected with one end of the resistor RS2 and one end of the resistor RS3 respectively, the other end of the resistor RS2 is electrically connected with the other end of the resistor RS3, the other end of the resistor RS2 and the other end of the resistor RS3 are grounded, the other end of the resistor RS3 is electrically connected with a fourth pin of the silicon controlled rectifier LED constant current control chip IC1, one end of the resistor R5 is electrically connected with a fifth pin of the silicon controlled rectifier LED constant current control chip IC1, and a ninth pin of the silicon controlled rectifier LED constant current control chip IC1 is grounded.
From the above description, it can be known that whether the system is connected to the thyristor dimmer is judged by detecting the change rate of the voltage of the first pin of the thyristor LED constant current control chip IC1, and when no dimmer is detected, the thyristor LED constant current control chip IC1 closes the bleeder current, thereby reducing the loss and improving the system efficiency; when the light modulator is detected to be connected, the silicon controlled LED constant current control chip IC1 can start the current leakage, and the normal work of the silicon controlled rectifier in the light modulation process is maintained, so that the light modulation compatibility of the whole lamp is improved, and the light modulation of the silicon controlled rectifier can be realized under the main illumination and the small night lamp modes; the resistor RS1 is used for setting the magnitude of the bleeder current, changing the bleeder current and improving the dimming compatibility of the whole lamp; the resistor RS2 and the resistor RS3 are used for adjusting the output current of the thyristor LED constant current control chip IC1, the resistor R5 is used as a linear adjustment rate, the thyristor LED constant current control chip IC1 modulates the output current through the voltage of the fifth pin, and the system performs constant power modulation, so that the input voltage is in the range of 108V-120V, and the power change is smaller.
Further, the compatible silicon controlled rectifier control module further comprises a resistor R1, one end of the resistor R1 is electrically connected with the first pin of the silicon controlled rectifier LED constant current control chip IC1, and the other end of the resistor R1 is electrically connected with the wall switch switching module.
Further, the wall switch switching module comprises a chip IC2, the model of the chip IC2 is SM2212, and an eighth pin of the chip IC2 is electrically connected with a silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC 1.
Further, the wall switch switching module further includes a resistor R2, a capacitor C1, and a capacitor C2, where one end of the resistor R2 is electrically connected to one end of the capacitor C1 and the first pin of the chip IC2, and the other end of the resistor R2 is electrically connected to the other end of the capacitor C1, the other end of the capacitor C2, and the ninth pin of the chip IC 2.
As can be seen from the above description, setting the capacitor C1 and the capacitor C2 to set the switching minimum time and the reset time respectively, the chip IC2 realizes the two-stage switching and the reset time of the wall switch by detecting the power failure condition of the capacitor C1 and the capacitor C2, and the resistor R2 discharges the capacitor C1 to reduce the minimum switching time.
Further, the wall switch switching module further includes a resistor RS4 and a resistor RS5, one end of the resistor RS4 is electrically connected with the third pin of the chip IC2, the other end of the resistor RS4 is electrically connected with one end of the resistor RS5 and the ninth pin of the chip IC2, and the other end of the resistor RS5 is electrically connected with the fourth pin of the chip IC 2.
As can be seen from the above description, the resistor RS4 is connected to the third pin of the chip IC2, and controls the current of the main illumination light source, and the resistor RS5 is connected to the fourth pin of the chip IC2, and controls the current of the small night light source.
Further, the wall switch switching module further comprises a resistor R3, one end of the resistor R3 is electrically connected with an eighth pin of the chip IC2, and the other end of the resistor R3 is electrically connected with a silicon controlled voltage detection end of the silicon controlled LED constant current control chip IC 1.
Further, the LED constant current control device further comprises a dial color temperature control module, wherein the dial color temperature control module is respectively and electrically connected with the chip high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1 and the wall switch switching module, and the dial color temperature control module is electrically connected with a main illumination light source of the peripheral.
Further, the dial color temperature control module comprises a dial switch SW1, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R14, wherein one end of the resistor R7 is electrically connected with the fourth end of the dial switch SW1, the other end of the resistor R7 is electrically connected with one end of the resistor R8, the other end of the resistor R8 is electrically connected with one end of the resistor R9, one end of the resistor R10, the first end of the dial switch SW1, the second end of the dial switch SW1 and a main illumination light source of a peripheral, one end of the resistor R11 is electrically connected with the third end of the dial switch SW1, the other end of the resistor R11 is electrically connected with one end of the resistor R12, the other end of the resistor R12 is electrically connected with one end of the resistor R14, the fifth end of the dial switch SW1 and the main illumination light source of the peripheral, the other end of the resistor R14 is electrically connected with one end of the resistor R13, and the other end of the resistor SW 13 is electrically connected with the first end of the dial switch SW 1.
From the above description, the two light sources of the main illumination are connected to the dial switch SW1 through the series resistor, so as to change different currents of the two light sources of the main illumination, to obtain 5 color temperatures required by a user, and to switch different gears through the dial switch SW1, so as to realize different color temperatures.
Further, the device also comprises a rectifying surge protection module, wherein the rectifying surge protection module is respectively and electrically connected with the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 and the constant current output end of the silicon controlled rectifier LED constant current control chip IC 1.
Referring to fig. 1 and 2, a first embodiment of the present utility model is as follows:
referring to fig. 1 and 2, a thyristor dimming control circuit includes a wall switch switching module 2 disposed on a DOB device, the wall switch switching module 2 is electrically connected with a main illumination light source and a small night light source, which are peripheral, a compatible thyristor control module 1 is further disposed on the DOB device, the compatible thyristor control module 1 includes a thyristor LED constant current control chip IC1, and a thyristor voltage detection end of the thyristor LED constant current control chip IC1 and a constant current output end of the thyristor LED constant current control chip IC1 are electrically connected with the wall switch switching module 2.
The model of the silicon controlled LED constant current control chip IC1 is SM2196.
Referring to fig. 2, the compatible scr control module 1 further includes a resistor RS1 (with a resistance value of 4.3 Ω), a resistor RS2 (with a resistance value of 9.1 Ω), a resistor RS3 (with a resistance value of 10 Ω), and a resistor R5 (with a resistance value of 180kΩ), one end of the resistor RS1 is electrically connected to the third pin of the scr LED constant current control chip IC1, the other end of the resistor RS1 is electrically connected to one end of the resistor RS2 and one end of the resistor RS3, the other end of the resistor RS2 is electrically connected to the other end of the resistor RS3, the other end of the resistor RS2 and the other end of the resistor RS3 are both grounded, the other end of the resistor RS3 is electrically connected to the fourth pin of the scr LED constant current control chip IC1, one end of the resistor R5 is electrically connected to the fifth pin of the scr LED constant current control chip IC1, and the ninth pin of the scr LED constant current control chip IC1 is grounded.
Referring to fig. 2, the compatible scr control module 1 further includes a resistor R1 (with a resistance value of 200Ω), one end of the resistor R1 is electrically connected to the first pin of the scr LED constant current control chip IC1, and the other end of the resistor R1 is electrically connected to the wall switch switching module 2.
Referring to fig. 2, the wall switch switching module 2 includes a chip IC2, the type of the chip IC2 is SM2212, and an eighth pin of the chip IC2 is electrically connected with a thyristor voltage detection end of the thyristor LED constant current control chip IC 1.
Referring to fig. 2, the wall switch switching module 2 further includes a resistor R2 (with a resistance value of 15kΩ), a capacitor C1 (with a capacitance value of 4.7 μf), and a capacitor C2 (with a capacitance value of 4.7 μf), wherein one end of the resistor R2 is electrically connected to one end of the capacitor C1 and the first pin of the chip IC2, and the other end of the resistor R2 is electrically connected to the other end of the capacitor C1, the other end of the capacitor C2, and the ninth pin of the chip IC 2.
Referring to fig. 2, the wall switch switching module 2 further includes a resistor RS4 (with a resistance value of 7.5 Ω) and a resistor RS5 (with a resistance value of 68Ω), one end of the resistor RS4 is electrically connected to the third pin of the chip IC2, the other end of the resistor RS4 is electrically connected to one end of the resistor RS5 and the ninth pin of the chip IC2, and the other end of the resistor RS5 is electrically connected to the fourth pin of the chip IC 2.
Referring to fig. 2, the wall switch switching module 2 further includes a resistor R3 (with a resistance value of 51kΩ), one end of the resistor R3 is electrically connected to the eighth pin of the chip IC2, and the other end of the resistor R3 is electrically connected to the thyristor voltage detection end of the thyristor LED constant current control chip IC 1.
Referring to fig. 1, the portable electronic device further comprises a dial color temperature control module 3, wherein the dial color temperature control module 3 is electrically connected with a chip high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1 and the wall switch switching module 2 respectively, and the dial color temperature control module 3 is electrically connected with a main illumination light source of the peripheral equipment.
Referring to fig. 2, the dial color temperature control module 3 includes a dial switch SW1 (which is a five-stage horizontal dial switch, and the type thereof is SK25D02G 4M), a resistor R7 (the resistance value is 150Ω), a resistor R8 (the resistance value is 150Ω), a resistor R9 (the resistance value is 36Ω), a resistor R10 (the resistance value is 36Ω), a resistor R11 (the resistance value is 0Ω), a resistor R12 (the resistance value is 0Ω), a resistor R13 (the resistance value is 75Ω) and a resistor R14 (the resistance value is 75Ω), one end of the resistor R7 is electrically connected with the fourth end of the dial switch SW1, the other end of the resistor R7 is electrically connected with one end of the resistor R8, the other end of the resistor R8 is electrically connected with one end of the resistor R9, one end of the resistor R10, a first end of the dial switch SW1, a second end of the dial switch SW1 and a main lighting source of a peripheral, one end of the resistor R11 is electrically connected with a third end of the dial switch SW1, the other end of the resistor R11 is electrically connected with the fourth end of the dial switch SW1, the other end of the resistor R12 is electrically connected with the second end of the resistor SW 14, and the other end of the resistor SW 13 is electrically connected with the other end of the main lighting source of the resistor SW 1.
Referring to fig. 1, the device further includes a rectifying and surge protection module 4, where the rectifying and surge protection module 4 is electrically connected with the thyristor voltage detection end of the thyristor LED constant current control chip IC1 and the constant current output end of the thyristor LED constant current control chip IC1, respectively.
Referring to fig. 2, the rectifying and surge protection module 4 includes a resistor FR1 (with a resistance value of 10Ω), a varistor RV1 (with a withstand voltage value of 240V), and a rectifier bridge BR1 (with a model of MB 10F), and the specific connection relationship between the components is shown in fig. 2. The alternating current is rectified into direct current through the resistor FR1, the piezoresistor RV1 and the rectifier bridge BR1, and the resistor FR1 and the piezoresistor RV1 play a surge protection role.
The working principle of the silicon controlled rectifier dimming control circuit is as follows:
the alternating current is rectified into direct current through the resistor FR1, the piezoresistor RV1 and the rectifier bridge BR1, and the resistor FR1 and the piezoresistor RV1 play a surge protection role.
The VIN pin string resistor of the chip IC2 is connected to the rectifier bridge BR1 to supply power to the chip IC2, the capacitor C1 and the capacitor C2 are respectively set to be switched for the shortest time and the reset time, the chip IC2 realizes the two-gear switching and the reset time of the wall change-over switch by detecting the power failure condition of the capacitor C1 and the capacitor C2, and the resistor R2 discharges the capacitor C1 to reduce the shortest switching time. By turning off the lamp, the first pin of the chip IC2 detects the power-down condition of the capacitor C1, the chip IC2 detects that the power-down of the capacitor C1 is lower than a certain value, the wall cut to the next color temperature can be realized by turning on the lamp, the second pin of the chip IC2 detects the power-down condition of the capacitor C2, the detection of the chip IC2 is lower than a certain value, and the reset function is realized by turning on the lamp to the initial gear. The resistor RS4 is connected with the third pin of the chip IC2 and used for controlling the current of the main illumination light source, and the resistor RS5 is connected with the fourth pin of the chip IC2 and used for controlling the current of the small night light source.
The resistor R3 is connected to the rectifier bridge BR1, whether the dimmer is connected to control the switch of the discharge current is detected, the driving loss of the dimmer which is not connected can be reduced, the VD pin (namely the fifth pin) of the chip IC2 is an input voltage detection feedback end, the resistance value of the resistor R5 is changed to adjust the linear adjustment rate, the resistor RS1, the resistor RS2 and the resistor RS3 are respectively provided with the discharge current and the whole lamp output current, the discharge current can be changed to improve the whole lamp dimming compatibility, and the electrolytic capacitor E1 is used for reducing LED ripples and improving stroboflash.
The thyristor dimming control circuit designed according to the scheme is connected with 120V and can provide LED driving output of about 144V and 70 mA.
The silicon controlled rectifier dimming control circuit designed by the scheme can be compatible with silicon controlled rectifier dimming under the main illumination and small night lamp modes, the scheme also has a reset function, the lamp is turned off to exceed 3S, and the lamp is automatically reset to the main illumination mode, so that the use of a user is more convenient.
In summary, according to the silicon controlled rectifier dimming control circuit provided by the utility model, the compatible silicon controlled rectifier control module is arranged on the DOB device, the compatible silicon controlled rectifier control module comprises the silicon controlled rectifier LED constant current control chip IC1, the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 is respectively and electrically connected with the wall switch switching module and the high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1, the constant current output end of the silicon controlled rectifier LED constant current control chip IC1 is electrically connected with the wall switch switching module, whether a system is connected with the silicon controlled rectifier dimmer is judged by detecting the change rate of the voltage of the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1, and when no dimmer is detected, the silicon controlled rectifier LED constant current control chip IC1 turns off the discharge current, so that loss is reduced, and system efficiency is improved; when the light modulator is detected to be connected, the thyristor LED constant current control chip IC1 can start the bleeder current, and the normal work of the thyristor in the light modulation process is maintained, so that the light modulation compatibility of the whole lamp is improved, and the light modulation of the compatible thyristor in the main illumination and small night lamp modes is realized.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a silicon controlled rectifier dimming control circuit, includes the wall switch module of setting on DOB device, wall switch module is connected with the main illumination light source and the little night-light source electricity of peripheral hardware respectively, its characterized in that still is equipped with compatible silicon controlled rectifier control module on the DOB device, compatible silicon controlled rectifier control module includes silicon controlled rectifier LED constant current control chip IC1, silicon controlled rectifier LED constant current control chip IC 1's silicon controlled rectifier voltage detection end and silicon controlled rectifier LED constant current control chip IC 1's constant current output all are connected with wall switch module electricity respectively.
2. The thyristor dimming control circuit according to claim 1, wherein the compatible thyristor control module further comprises a resistor RS1, a resistor RS2, a resistor RS3 and a resistor R5, the type of the thyristor LED constant current control chip IC1 is SM2196, one end of the resistor RS1 is electrically connected with a third pin of the thyristor LED constant current control chip IC1, the other end of the resistor RS1 is electrically connected with one end of the resistor RS2 and one end of the resistor RS3 respectively, the other end of the resistor RS2 is electrically connected with the other end of the resistor RS3, the other end of the resistor RS2 and the other end of the resistor RS3 are both grounded, the other end of the resistor RS3 is electrically connected with a fourth pin of the thyristor LED constant current control chip IC1, one end of the resistor R5 is electrically connected with a fifth pin of the thyristor LED constant current control chip IC1, and a ninth pin of the thyristor LED constant current control chip IC1 is grounded.
3. The thyristor dimming control circuit according to claim 2, wherein the compatible thyristor control module further comprises a resistor R1, one end of the resistor R1 is electrically connected to the first pin of the thyristor LED constant current control chip IC1, and the other end of the resistor R1 is electrically connected to the wall switch switching module.
4. The dimming control circuit of claim 1, wherein the wall switch switching module comprises a chip IC2, the type of the chip IC2 is SM2212, and an eighth pin of the chip IC2 is electrically connected with a thyristor voltage detection terminal of the thyristor LED constant current control chip IC 1.
5. The silicon controlled dimming control circuit as claimed in claim 4, wherein the wall switch switching module further comprises a resistor R2, a capacitor C1 and a capacitor C2, wherein one end of the resistor R2 is electrically connected with one end of the capacitor C1 and the first pin of the chip IC2, and the other end of the resistor R2 is electrically connected with the other end of the capacitor C1, the other end of the capacitor C2 and the ninth pin of the chip IC 2.
6. The silicon controlled dimming control circuit of claim 4, wherein the wall switch switching module further comprises a resistor RS4 and a resistor RS5, one end of the resistor RS4 is electrically connected to the third pin of the chip IC2, the other end of the resistor RS4 is electrically connected to one end of the resistor RS5 and the ninth pin of the chip IC2, respectively, and the other end of the resistor RS5 is electrically connected to the fourth pin of the chip IC 2.
7. The dimming control circuit of claim 4, wherein the wall switch switching module further comprises a resistor R3, one end of the resistor R3 is electrically connected to the eighth pin of the chip IC2, and the other end of the resistor R3 is electrically connected to the thyristor voltage detection end of the thyristor LED constant current control chip IC 1.
8. The silicon controlled rectifier dimming control circuit according to claim 1, further comprising a dial color temperature control module, wherein the dial color temperature control module is electrically connected with the high-voltage power supply input end of the silicon controlled rectifier LED constant current control chip IC1 and the wall switch switching module respectively, and the dial color temperature control module is electrically connected with a main illumination light source of the peripheral.
9. The triac dimmer control circuit of claim 8, wherein the dial color temperature control module comprises a dial switch SW1, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R14, one end of the resistor R7 is electrically connected to the fourth end of the dial switch SW1, the other end of the resistor R7 is electrically connected to one end of the resistor R8, the other end of the resistor R8 is electrically connected to one end of the resistor R9, one end of the resistor R10, a first end of the dial switch SW1, a second end of the dial switch SW1 and a main illumination source of the peripheral, one end of the resistor R11 is electrically connected to the third end of the dial switch SW1, the other end of the resistor R11 is electrically connected to one end of the resistor R12, the other end of the resistor R12 is electrically connected to one end of the resistor R14, a fifth end of the dial switch SW1, a sixth end of the dial switch SW1 and the main illumination source of the peripheral, respectively, and the other end of the resistor R11 is electrically connected to the first end of the resistor R13.
10. The silicon controlled rectifier dimming control circuit according to claim 1, further comprising a rectifying surge protection module, wherein the rectifying surge protection module is electrically connected with the silicon controlled rectifier voltage detection end of the silicon controlled rectifier LED constant current control chip IC1 and the constant current output end of the silicon controlled rectifier LED constant current control chip IC1 respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321093035.5U CN219843751U (en) | 2023-05-09 | 2023-05-09 | Silicon controlled rectifier dimming control circuit |
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| CN202321093035.5U CN219843751U (en) | 2023-05-09 | 2023-05-09 | Silicon controlled rectifier dimming control circuit |
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| CN202321093035.5U Active CN219843751U (en) | 2023-05-09 | 2023-05-09 | Silicon controlled rectifier dimming control circuit |
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Denomination of utility model: A controllable silicon dimming control circuit Granted publication date: 20231017 Pledgee: Agricultural Bank of China Limited by Share Ltd. Xiamen Tongan branch Pledgor: Xiamen Topstar Lighting Co.,Ltd. Registration number: Y2024980002052 |
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