CN-115802558-B - Dimming and toning circuit and PCB

CN115802558BCN 115802558 BCN115802558 BCN 115802558BCN-115802558-B

Abstract

The application discloses a dimming and toning circuit and a PCB (printed circuit board), wherein the dimming and toning circuit comprises an input processing unit, a detection unit, an infrared sensing unit, an output control unit and a stroboscopic removing unit, wherein the input end of the input processing unit and the input end of the detection unit are respectively used for receiving external input signals, the output end of the input processing unit is connected with the input end of the stroboscopic removing unit, the output end of the detection unit and the output end of the infrared sensing unit are respectively connected with the input end of the output control unit, and the output end of the output control unit and the output end of the stroboscopic removing unit are respectively used for being connected with a lighting device.

Inventors

LI JINHONG
TAN SHIYAO
LI JUN
XU HAOTAO

Assignees

广东科谷智享电器有限公司
广东科谷电源股份有限公司
广东科谷智能科技有限公司
广东云谷电源有限公司

Dates

Publication Date: 20260508
Application Date: 20221216

Claims (10)

1. The dimming and toning circuit is characterized by comprising an input processing unit, a detection unit, an infrared induction unit, an output control unit and a stroboscopic removal unit; the output end of the input processing unit is connected with the input end of the strobe removing unit, the output end of the detection unit and the output end of the infrared sensing unit are respectively connected with the input end of the output control unit, the infrared sensing unit is used for receiving infrared signals, and the output end of the output control unit and the output end of the strobe removing unit are used for connecting a lighting device; The output control unit comprises a third control chip U3, the detection unit comprises a second control chip U2 and a thirty-fifth resistor R35, the model of the third control chip U3 is U-MC51F003A4A0M, the model of the second control chip U2 is PC817, a pin 2 of the second control chip U2 is used for receiving an external input signal, a pin 4 of the second control chip U2 is connected with one end of the thirty-fifth resistor R35, and the other end of the thirty-fifth resistor R35 is connected with a pin 9 of the third control chip U3; The infrared sensing unit comprises a fourth control chip U4, wherein the model of the fourth control chip U4 is UCS14266, a pin 7 of the fourth control chip U4 is connected with a pin 4 of the third control chip U3, and a pin 8 of the fourth control chip U4 is connected with a pin 3 of the third control chip U3; The second control chip U2 detects input signals to judge whether the outside is connected with the silicon controlled rectifier dimmer, the second control chip U2 feeds back to the third control chip U3 through the pin 4, the third control chip U3 judges whether the work is stopped or whether a port is opened according to information fed back by the second control chip U2, the fourth control chip U4 is an infrared joint sensing device, external signals can be sensed through infrared induction of the infrared joint sensing device, the fourth control chip U4 feeds back information processing to the third control chip U3, and the third control chip U3 adjusts the working state of an output control unit according to information fed back by the fourth control chip U4, so that the aim of dimming and color temperature adjustment is achieved.
2. The dimming and toning circuit according to claim 1, further comprising a current detection unit, wherein an input end of the current detection unit is used for being connected with a lighting device, and an output end of the current detection unit is connected with an input end of the output control unit.
3. The dimming and toning circuit according to claim 2, wherein the output control unit further comprises an eleventh diode D11, a twelfth diode D12, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-seventh resistor R27, a fifth field effect transistor Q5 and a sixth field effect transistor Q6, an output end of the detection unit is connected to the pin 9 of the third control chip U3, the infrared sensing unit is connected to the pin 3, the pin 4 and the pin 5 of the third control chip U3, respectively, and the current detection unit is connected to the pin 13 of the third control chip U3; the pin 12 of the third control chip U3 is connected to one end of the twenty-third resistor R23, one end of the twenty-fourth resistor R24 and the negative electrode of the twelfth diode D12, the other end of the twenty-third resistor R23 and the positive electrode of the twelfth diode D12 are connected to the gate of the sixth fet Q6, the other end of the twenty-fourth resistor R24 and the source of the sixth fet Q6 are respectively connected to one end of the twenty-seventh resistor R27, the pin 11 of the third control chip U3 is connected to one end of the twenty-first resistor R21, one end of the twenty-second resistor R22 and the negative electrode of the eleventh diode D11, the other end of the twenty-first resistor R21 and the positive electrode of the eleventh diode D11 are connected to the gate of the fifth fet Q5, the other end of the twenty-second resistor R22 and the source of the fifth fet Q5 are respectively connected to one end of the twenty-seventh resistor R27, the drain of the fifth fet Q5 is connected to the drain of the fifth fet Q6, the other end of the twenty-seventh resistor R27 is grounded.
4. The dimming and toning circuit according to claim 3, wherein the detection unit further comprises an eighteenth resistor R18, a nineteenth resistor R19, a first capacitor C1, a tenth diode D10, and a thirty-sixth resistor R36, wherein one end of the nineteenth resistor R19, the other end of the first capacitor C1, and the positive electrode of the tenth diode D10 are respectively used for receiving an external input signal, the other end of the nineteenth resistor R19 is connected to one end of the eighteenth resistor R18, the other end of the eighteenth resistor R18 is respectively connected to one end of the first capacitor C1, the negative electrode of the twelfth diode D10, and the pin 1 of the second control chip U2, the pin 4 of the second control chip U2 is further connected to one end of the thirty-sixth resistor R36, and the other end of the thirty-sixth resistor R36 and the pin 3 of the second control chip U2 are respectively grounded.
5. The dimming and toning circuit according to claim 3, wherein the infrared sensing unit further comprises a thirty-first resistor R31, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10, wherein a pin 2 of the fourth control chip U4 is connected to the other end of the thirty-second resistor R32 and a pin 5 of the third control chip U3, a pin 7 of the fourth control chip U4 is also connected to the other end of the thirty-third resistor R33, a pin 8 of the fourth control chip U4 is also connected to the other end of the thirty-fourth resistor R34, a pin 1 of the fourth control chip U4 is connected to one end of the ninth capacitor C9, one end of the tenth capacitor C10 and one end of the thirty-first resistor R31, one end of the thirty-first resistor R32, one end of the thirty-third resistor R33 and the other end of the fourth capacitor C4 are respectively connected to the other end of the eighth capacitor C8 and the other end of the fourth capacitor C4, respectively, and the other end of the fourth control chip U4 are connected to the ground.
6. A dimming and toning circuit according to claim 3, wherein the current detection unit comprises a seventh control chip U7, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-eighth resistor R28, a twenty-ninth resistor R29, a thirty-fifth resistor R30, a third capacitor C3, a fifth capacitor C5 and a sixth capacitor C6, one end of the twenty-fifth resistor R25 and one end of the twenty-sixth resistor R26 are used for connecting a lighting device, the other end of the twenty-fifth resistor R25 is connected with a pin 1 of the seventh control chip U7 and one end of the third capacitor C3, a pin 3 of the seventh control chip U7 is connected with one end of the twenty-ninth resistor R29 and one end of the twenty-eighth resistor R28, a pin 4 of the seventh control chip U7 is connected with the other end of the twenty-ninth resistor R29 and one end of the thirty-fifth resistor R30, the other end of the thirty-fifth resistor R30 is connected with the other end of the fifth capacitor C5 and one end of the sixth capacitor C6, and the other end of the twenty-eighth resistor R3 is connected with a pin 3 of the twenty-eighth resistor C6, and the other end of the twenty-eighth resistor R3 is connected with the other end of the twenty-eighth resistor R6.
7. The dimming and toning circuit according to claim 1, wherein the input processing unit comprises a rectifying portion and a filtering portion, an input end of the rectifying portion is used for receiving an external input signal, an output end of the rectifying portion is connected with an input end of the filtering portion, and an output end of the filtering portion is connected with an input end of the strobe removing unit.
8. The dimming and toning circuit according to claim 1, wherein the stroboscopic removing unit comprises a first control chip U1, a sixth control chip U6, a first transformer T1, a fifth diode D5, a sixteenth resistor R16, a third energy storage capacitor CE3, a fifth energy storage capacitor CE5, a sixth diode D6, a twentieth resistor R20, and a ripple suppression section; the primary winding pin 1 of the first transformer T1 is respectively connected with the output end of the input processing unit and the pin 6 of the first control chip U1, the primary winding pin 2 of the first transformer T1 is respectively connected with the output end of the input processing unit and the pin 5 of the first control chip U1, the pin 8 of the first control chip U1 is respectively connected with the pin 7 of the second power supply winding of the first transformer T1, the pin 2, the pin 3 and the pin 4 of the first control chip U1 are respectively connected with the output end of the input processing unit, the pin 3 of the secondary winding of the first transformer T1 is respectively connected with the positive electrode of the fifth diode D5, the negative electrode of the fifth diode D5 is respectively connected with one end of a sixteenth resistor R16, the positive electrode of a third energy storage capacitor CE3 and a ripple suppression part, the secondary winding pin 4 of the first transformer T1 is respectively connected with the pin 5 of the first charge winding and the pin 7 of the fifth energy storage capacitor CE5, the secondary winding pin 3 of the second transformer T1 is respectively connected with the positive electrode of the fifth diode D6, the twenty-first diode D1 is respectively connected with the positive electrode of the twenty-first diode D5 and the twenty-second diode D6 is respectively connected with the positive electrode of the fifth diode D5, the pin 3 of the sixth control chip U6 is used for connecting an external power supply device.
9. The dimming and toning circuit according to claim 8, wherein the ripple suppression unit comprises a seventeenth resistor R17, a seventh diode D7, an eighth diode D8, a ninth diode D9, a first field effect transistor Q1, a second field effect transistor Q2, a third field effect transistor Q3, a fourth field effect transistor Q4, a fourth energy storage capacitor CE4, and a first zener diode ZD1, wherein one end of the seventeenth resistor R17, an anode of the seventh diode D7, a drain of the first field effect transistor Q1, a drain of the second field effect transistor Q2, a drain of the third field effect transistor Q3, and a drain of the fourth field effect transistor Q4 are respectively connected to a cathode of the fifth diode D5, a cathode of the seventh diode D7 is connected to a cathode of the eighth diode D8, a cathode of the eighth diode D8 is connected to a cathode of the ninth diode D9, and another end of the seventeenth resistor R17, a drain of the fourth field effect transistor Q2, a cathode of the fourth field effect transistor Q4, and a cathode of the fourth field effect transistor Q1, a cathode of the fourth field effect transistor Q4 are respectively connected to anodes of the fourth field effect transistor Q1, a cathode of the fourth field effect transistor ZD 4, and a cathode of the fourth field effect transistor ZD 4 are respectively connected to anodes of the gates of the fourth field effect transistor Q1, and the fourth field effect transistor Q4.
10. A PCB board on which the dimming and toning circuit according to any one of claims 1 to 9 is printed.

Description

Dimming and toning circuit and PCB Technical Field The invention relates to the technical field of lighting driving circuits, in particular to a dimming and toning circuit and a PCB (printed circuit board). Background The existing driving power supply of the lamp can realize the dimming and color mixing functions by adopting a silicon controlled rectifier, or can realize the dimming and color mixing functions by adopting an infrared sensing switch matched with a control chip, or can realize the dimming and color mixing functions by adopting an APP module, but the control circuit of the existing driving power supply can generally realize the dimming and color mixing functions only by one mode, has single control, can not meet the use requirements of various different occasions, needs a user to configure various driving power supplies, increases the transportation cost and the inventory cost, and reduces the use experience of the user. It can be seen that there is a need for improvements and improvements in the art. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a dimming and toning circuit, which can realize silicon controlled rectifier dimming and infrared sensing dimming, and has the advantage of high flexibility of use. In order to achieve the above purpose, the invention adopts the following technical scheme: the dimming and toning circuit comprises an input processing unit, a detection unit, an infrared sensing unit, an output control unit and a stroboscopic removing unit, wherein the input end of the input processing unit and the input end of the detection unit are respectively used for receiving external input signals, the output end of the input processing unit is connected with the input end of the stroboscopic removing unit, the output end of the detection unit and the output end of the infrared sensing unit are respectively connected with the input end of the output control unit, the infrared sensing unit is used for receiving infrared signals, and the output end of the output control unit and the output end of the stroboscopic removing unit are used for being connected with a lighting device. The dimming and toning circuit further comprises a current detection unit, wherein the input end of the current detection unit is used for being connected with the lighting device, and the output end of the current detection unit is connected with the input end of the output control unit. In the dimming and toning circuit, the output control unit comprises a third control chip U3, an eleventh diode D11, a twelfth diode D12, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-seventh resistor R27, a fifth field effect transistor Q5 and a sixth field effect transistor Q6, the output end of the detection unit is connected with a pin 9 of the third control chip U3, the infrared induction unit is respectively connected with a pin 3, a pin 4 and a pin 5 of the third control chip U3, and the current detection unit is connected with a pin 13 of the third control chip U3; the pin 12 of the third control chip U3 is connected to one end of the twenty-third resistor R23, one end of the twenty-fourth resistor R24 and the negative electrode of the twelfth diode D12, the other end of the twenty-third resistor R23 and the positive electrode of the twelfth diode D12 are connected to the gate of the sixth fet Q6, the other end of the twenty-fourth resistor R24 and the source of the sixth fet Q6 are respectively connected to one end of the twenty-seventh resistor R27, the pin 11 of the third control chip U3 is connected to one end of the twenty-first resistor R21, one end of the twenty-second resistor R22 and the negative electrode of the eleventh diode D11, the other end of the twenty-first resistor R21 and the positive electrode of the eleventh diode D11 are connected to the gate of the fifth fet Q5, the other end of the twenty-second resistor R22 and the source of the fifth fet Q5 are respectively connected to one end of the twenty-seventh resistor R27, the drain of the fifth fet Q5 is connected to the drain of the fifth fet Q6, the other end of the twenty-seventh resistor R27 is grounded. In the dimming and toning circuit, the detection unit includes an eighteenth resistor R18, a nineteenth resistor R19, a first capacitor C1, a twelfth diode D10, a second control chip U2, a thirty-fifth resistor R35, and a thirty-sixth resistor R36, where one end of the nineteenth resistor R19, the other end of the first capacitor C1, the anode of the tenth diode D10, and the pin 2 of the second control chip U2 are respectively configured to receive an external input signal, the other end of the nineteenth resistor R19 is connected to one end of the eighteenth resistor R18, the other end of the eighteenth resistor R18 is respectively connected to one end of the first capacitor C1