A circuit for regulating power at an output using a dial switch

Abstract

The utility model discloses a kind of circuit of dial switch adjustment power at output end, including driving power supply, first color temperature lamp bead (W1-W6), second color temperature lamp bead (C7-C12), color temperature dial switch SW1 and power dial switch SW2, the power dial switch of the utility model is set on aluminum substrate, that is, power dial switch is set in the front face portion of lamp body, after lamp installation is completed, it will not affect the adjustment of power dial switch, so that power regulation is more convenient. The utility model is provided with the setting of frequency flash circuit, has higher isolation and anti-interference ability, can remove low-frequency frequency flash, suppress low-frequency jitter caused by power supply distortion, improve the effect of dimming, reduce visual fatigue, headache and eye dryness and other discomfort symptoms.

Description

Technical Field

[0001] This utility model belongs to the field of LED lighting power adjustment technology, specifically relating to a circuit that adjusts power using a DIP switch at the output end. Background Technology

[0002] With the development of society, LED energy-saving and environmentally friendly light sources are being used more and more widely, and various lighting manufacturers in the market are also developing faster and faster, with lighting fixtures of various shapes and sizes.

[0003] Currently, many regions and customers require products to have the highest possible power factor. Traditional independent driver power supply lamps use DIP switches to adjust the CS resistor of the driver power supply to change the power. For example, in a 6W / 4W metal downlight, when adjusted to 4W, the power factor (PF) will decrease significantly. This is because increasing the CS resistor will cause distortion of the current waveform. In a power factor correction (PFC) circuit, the distortion of the current waveform will directly affect the power factor and reduce it. Specifically, the increase of higher harmonic current will lead to an increase in total harmonic distortion (THD), thereby reducing the power factor and significantly reducing product performance.

[0004] Many traditional LED downlights lack power adjustment functionality, or the power adjustment switch is located on the driver box. After the light fixture is installed, the driver power supply is hidden inside the ceiling, making power adjustment very inconvenient. It requires removing the light body, unplugging the driver power supply, adjusting the power, and then plugging the driver power supply back in before reinstalling and securing the light body. Changing the power of a batch of downlights is particularly troublesome, and repeated disassembly and reassembly of the light fixtures can lead to many adverse risks and affect the product's lifespan. Utility Model Content

[0005] The purpose of this invention is to provide a circuit for adjusting power via a DIP switch at the output terminal, thereby solving the problems mentioned in the background section. The circuit provided by this invention, which adjusts power via a DIP switch at the output terminal, features convenient power adjustment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit for adjusting power via a DIP switch at the output end, comprising a drive power supply, first color temperature LEDs (W1-W6), second color temperature LEDs (C7-C12), a color temperature DIP switch SW1, and a power DIP switch SW2. The color temperature of the first color temperature LEDs (W1-W6) is 27K, and the color temperature of the second color temperature LEDs (C7-C12) is 40K. Pin 2 of the color temperature DIP switch SW1 is connected to the V+ terminal of the drive power supply. Pin 1 of the color temperature DIP switch SW1 is connected to the positive terminals of the first color temperature LEDs W1 and W2, respectively. The negative terminal of the first color temperature LED W1 is connected to the positive terminal of the first color temperature LED W3. The negative terminal of the first color temperature LED W2 is connected to the positive terminal of the first color temperature LED W4. The negative terminals of the first color temperature LEDs W3 and W4 are both connected to pin 5 of the power DIP switch SW2. The connections are as follows: pin 4 of power DIP switch SW2 is connected to the positive terminals of the first color temperature LEDs W5 and W6, respectively; pin 4 of color temperature DIP switch SW1 is connected to the positive terminals of the second color temperature LEDs C7 and C8, respectively; the negative terminal of the second color temperature LED C7 is connected to the positive terminal of the second color temperature LED C9, and the negative terminal of the second color temperature LED C8 is connected to the positive terminal of the second color temperature LED C10; the negative terminals of the second color temperature LEDs C9 and C10 are both connected to pin 2 of power DIP switch SW2; pin 3 of power DIP switch SW2 is connected to the positive terminals of the second color temperature LEDs C11 and C12, respectively; the negative terminals of the first color temperature LEDs W5 and W6, the second color temperature LEDs C11 and C12, pins 1 and 6 of power DIP switch SW2 are all connected to the V- terminal of the drive power supply.

[0007] In this invention, pin 3 of the color temperature DIP switch SW1 is connected to the positive terminals of diodes DS4 and DS5 respectively, the negative terminal of diode DS4 is connected to pin 1 of the color temperature DIP switch SW1, and the negative terminal of diode DS5 is connected to pin 4 of the color temperature DIP switch SW1.

[0008] In this invention, the driving power supply includes an AC-CC chip. The CC+ pin of the AC-CC chip is connected to the positive terminal of the rectifier diode DS2. The negative terminal of the rectifier diode DS2 is connected to one end of the electrolytic capacitor CE1 and the resistor RS8, respectively. The CC- pin of the AC-CC chip is connected to the other end of the electrolytic capacitor CE1 and the resistor RS8, respectively.

[0009] Furthermore, this invention also includes a frequency reduction lightning circuit, which includes a MOSFET Q1. The drain of the MOSFET Q1 is connected to the CC+ pin of the AC-CC chip, the source of the MOSFET Q1 is connected to the positive terminal of the diode DZ2, the gate of the MOSFET Q1 and the negative terminal of the diode DZ2 are both connected to one end of the electrolytic capacitor CE2, and the other end of the electrolytic capacitor CE2 is connected to the CC- pin of the AC-CC chip.

[0010] Furthermore, in this invention, the drain of MOSFET Q1 is connected to one end of resistor RS9 and the positive terminal of diode DS3, the other end of resistor RS9 and the negative terminal of diode DS3 are both connected to the negative terminal of diode DZ1, and the positive terminal of diode DZ1 is connected to one end of electrolytic capacitor CE2.

[0011] Furthermore, in this invention, a resistor RS10 is connected between the gate of the MOS transistor Q1 and one end of the electrolytic capacitor CE2.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The power DIP switch of this utility model is set on the aluminum substrate, that is, the power DIP switch is set on the front part of the lamp body. After the lamp is installed, it will not affect the adjustment of the power DIP switch, making power adjustment more convenient.

[0014] 2. This utility model, through the setting of the frequency-removing lightning circuit, has a high degree of isolation and anti-interference ability, which can remove low-frequency flicker, suppress low-frequency jitter caused by mains power distortion, improve the dimming effect, and reduce discomfort symptoms such as visual fatigue, headache and dry eyes.

[0015] 3. This utility model improves color accuracy by setting up a flicker-free circuit, which meets the needs of professional users who require precise color calibration and improves the user experience. For people who need to use computers for a long time, the flicker-free function can reduce the incidence of discomfort symptoms such as headaches and dry eyes. Attached Figure Description

[0016] Figure 1 This is a circuit diagram showing the connection of the first color temperature LED, the second color temperature LED, the color temperature adjustment DIP switch, and the power adjustment DIP switch of this utility model.

[0017] Figure 2 This is a circuit diagram showing the connection between the driving power supply and the frequency reduction lightning circuit of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this utility model, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0022] Example 1

[0023] Please see Figures 1-2This embodiment provides the following technical solution: a circuit for adjusting power via a DIP switch at the output end, including a drive power supply, first color temperature LEDs (W1-W6), second color temperature LEDs (C7-C12), a color temperature DIP switch SW1, and a power DIP switch SW2. The color temperature of the first color temperature LEDs (W1-W6) is 27K, and the color temperature of the second color temperature LEDs (C7-C12) is 40K. Pin 2 of the color temperature DIP switch SW1 is connected to the V+ terminal of the drive power supply. Pin 1 of the color temperature DIP switch SW1 is connected to the positive terminals of the first color temperature LEDs W1 and W2, respectively. The negative terminal of the first color temperature LED W1 is connected to the positive terminal of the first color temperature LED W3. The negative terminal of the first color temperature LED W2 is connected to the positive terminal of the first color temperature LED W4. The negative terminals of the first color temperature LEDs W3 and W4 are both connected to pin 5 of the power DIP switch SW2. Pin 4 of the power DIP switch SW2 is connected to the positive terminals of the first color temperature LEDs W5 and W6, respectively. Pin 4 of the color temperature DIP switch SW1 is connected to the positive terminals of the second color temperature LEDs C7 and C8, respectively. The negative terminal of the second color temperature LED C7 is connected to the positive terminal of the second color temperature LED C9, and the negative terminal of the second color temperature LED C8 is connected to the positive terminal of the second color temperature LED C10. The negative terminals of the second color temperature LEDs C9 and C10 are both connected to pin 2 of the power DIP switch SW2. Pin 3 of the power DIP switch SW2 is connected to the positive terminals of the second color temperature LEDs C11 and C12, respectively. The negative terminals of the first color temperature LEDs W5 and W6, the negative terminals of the second color temperature LEDs C11 and C12, and pins 1 and 6 of the power DIP switch SW2 are all connected to the V- terminal of the drive power supply.

[0024] By adopting the above technical solution, the power DIP switch of this utility model is set on the aluminum substrate, that is, the power DIP switch is set on the front part of the lamp body. After the lamp is installed, it will not affect the adjustment of the power DIP switch, making power adjustment more convenient.

[0025] Specifically, pin 3 of the color temperature DIP switch SW1 is connected to the positive terminals of diodes DS4 and DS5 respectively, the negative terminal of diode DS4 is connected to pin 1 of the color temperature DIP switch SW1, and the negative terminal of diode DS5 is connected to pin 4 of the color temperature DIP switch SW1.

[0026] By adopting the above technical solution, when the color temperature DIP switch SW1 is switched to the 3rd position, the first color temperature LED (W1-W6) and the second color temperature LED (C7-C12) are lit, so that the color temperature of the whole lamp is 30K.

[0027] Specifically, the drive power supply includes an AC-CC chip. The CC+ pin of the AC-CC chip is connected to the positive terminal of the rectifier diode DS2. The negative terminal of the rectifier diode DS2 is connected to one end of the electrolytic capacitor CE1 and the resistor RS8. The CC- pin of the AC-CC chip is connected to the other end of the electrolytic capacitor CE1 and the resistor RS8.

[0028] Example 2

[0029] The difference between this embodiment and embodiment 1 is that, specifically, it also includes a frequency reduction lightning circuit, which includes a MOSFET Q1. The drain of the MOSFET Q1 is connected to the CC+ pin of the AC-CC chip, the source of the MOSFET Q1 is connected to the positive terminal of the diode DZ2, the gate of the MOSFET Q1 and the negative terminal of the diode DZ2 are both connected to one end of the electrolytic capacitor CE2, and the other end of the electrolytic capacitor CE2 is connected to the CC- pin of the AC-CC chip.

[0030] By adopting the above technical solution, this utility model, through the setting of the flicker-removing circuit, has high isolation and anti-interference capabilities, can eliminate low-frequency flicker, suppress low-frequency jitter caused by mains power distortion, improve the dimming effect, and reduce discomfort symptoms such as visual fatigue, headaches, and dry eyes. This utility model, through the setting of the flicker-removing circuit, improves color accuracy, meeting the needs of professional users who require precise color calibration, and improving the user experience. For people who need to use computers for extended periods, the flicker-removing function can reduce the incidence of discomfort symptoms such as headaches and dry eyes.

[0031] Specifically, the drain of MOSFET Q1 is connected to one end of resistor RS9 and the positive terminal of diode DS3. The other end of resistor RS9 and the negative terminal of diode DS3 are both connected to the negative terminal of diode DZ1. The positive terminal of diode DZ1 is connected to one end of electrolytic capacitor CE2.

[0032] By adopting the above technical solution, when the current stage voltage is higher than the average value, the electrolytic capacitor CE2 is charged through diode DS3 and diode DZ1; when the current stage voltage is lower than the average value, the electrolytic capacitor CE2 is discharged through diode DZ1 and resistor RS9, thus maintaining the Vds of MOSFET Q1 unchanged.

[0033] Specifically, a resistor RS10 is connected between the gate of MOSFET Q1 and one end of electrolytic capacitor CE2.

[0034] By adopting the above technical solution, the Vgs of MOSFET Q1 is kept constant by resistor RS10, so that MOSFET Q1 remains in the constant current region in the trough region of the previous stage.

[0035] The method for adjusting power according to this utility model includes the following steps:

[0036] (1) Connect the live wire L and neutral wire N of the drive power supply to the 220V mains power. The CC+ and CC- terminals of the AC-CC chip are rectified by diode DS2 and preliminarily filtered by electrolytic capacitor CE1 to provide energy to the subsequent circuit.

[0037] (2) When the current stage voltage is higher than the average value, the electrolytic capacitor CE2 is charged through diode DS3 and diode DZ1; when the current stage voltage is lower than the average value, the electrolytic capacitor CE2 is discharged through diode DZ1 and resistor RS9 to keep the Vds of MOSFET Q1 constant. Resistor RS9 will affect the response speed of the ripple removal circuit (for Triac applications). At the same time, resistor RS10 keeps the Vgs of MOSFET Q1 constant, so that MOSFET Q1 remains in the constant current region in the trough region of the previous stage.

[0038] (3) Current enters pin 2 (common pin) of color temperature DIP switch SW1. When the switch is turned to the left, that is, pin 2 and pin 1 of color temperature DIP switch SW1 are connected, current enters the 27K color temperature LED, and the product color temperature is 27K. When the switch is turned to the right, that is, pin 2 and pin 4 of color temperature DIP switch SW1 are connected, current enters the 40K color temperature LED, and the product color temperature is 40K. When the switch is turned to the middle, that is, pin 2 and pin 3 of color temperature DIP switch SW1 are connected, current enters both the 27K and 40K color temperature LEDs, and the product color temperature is 30K.

[0039] (4) When the color temperature DIP switch SW1 is switched to the left, pins 2 and 1 of the color temperature DIP switch SW1 are connected, the 27K color temperature LED lights up, and the product color temperature is 27K. Current enters pin 5 of the power DIP switch SW2, which is the common pin for the 27K color temperature LED. If the power DIP switch SW2 is switched to the left, pins 5 and 6 of SW2 are connected. The circuit flows through V+, pins 2 and 1 of the color temperature DIP switch SW1, the positive terminals of the first color temperature LED W1 and W2, the negative terminals of the first color temperature LED W3 and W4, and the power DIP switch SW2. A circuit is formed from pins 5 and 6 of the power DIP switch SW2 to V-, with a total product power of 4W. If the power DIP switch SW2 is switched to the right, pins 5 and 4 of the power DIP switch SW2 are connected, and the circuit is connected to V- through pins 2 and 1 of the color temperature DIP switch SW1, the positive terminals of the first color temperature LEDs W1 and W2, the negative terminals of the first color temperature LEDs W3 and W4, pins 5 and 4 of the power DIP switch SW2, and the positive terminals of the first color temperature LEDs W5 and W6, with a total product power of 6W.

[0040] (5) When the color temperature DIP switch SW1 is switched to the right, pins 2 and 4 of the color temperature DIP switch SW1 are connected, the 40K color temperature LED lights up, and the product color temperature is 40K. Current enters pin 2 of the power DIP switch SW2, which is the common pin for the 40K color temperature LED. If the power DIP switch SW2 is switched to the left, pins 2 and 1 of the power DIP switch SW2 are connected. The circuit passes through V+, pins 2 and 4 of the color temperature DIP switch SW1, the positive terminals of the second color temperature LEDs C7 and C8, and the negative terminals of the second color temperature LEDs C9 and C10. A circuit is formed from pins 2 and 1 of the power DIP switch SW2 to V-, with a total product power of 4W. If the power DIP switch SW2 is switched to the right, pins 2 and 3 of the power DIP switch SW2 are connected. The circuit is formed through V+, pins 2 and 4 of the color temperature DIP switch SW1, the positive terminals of the second color temperature LEDs C7 and C8, the negative terminals of the second color temperature LEDs C9 and C10, pins 2 and 3 of the power DIP switch SW2, the positive terminals of the second color temperature LEDs C11 and C12, to V-, with a total product power of 6W.

[0041] (6) When the color temperature DIP switch SW1 is turned to the middle, pins 2 and 3 of the color temperature DIP switch SW1 are connected, and the 27K and 40K color temperature LEDs light up simultaneously, resulting in a product color temperature of 30K. Current flows into pins 2 and 5 of the power DIP switch SW2. If the power DIP switch SW2 is turned to the left, pins 2 and 1 of the power DIP switch SW2 are connected, and pins 5 and 6 are connected. The circuit flows through V+, pins 2 and 3 of the color temperature DIP switch SW1, the positive terminals of the first color temperature LED W1 and W2, the positive terminals of the second color temperature LED C7 and C8, the negative terminals of the first color temperature LED W3 and W4, the negative terminals of the second color temperature LED C9 and C10, and pins 2 and 1 of the power DIP switch SW2. Pins 5 and 6 form a loop to V-, with a total product power of 4W. If the power DIP switch SW2 is switched to the right, pins 2 and 3 of the power DIP switch SW2 are connected, and pins 5 and 4 are connected. The circuit forms a loop through V+, pins 2 and 3 of the color temperature DIP switch SW1, the positive terminals of the first color temperature LED W1 and W2, the positive terminals of the second color temperature LED C7 and C8, the negative terminals of the first color temperature LED W3 and W4, the negative terminals of the second color temperature LED C9 and C10, pins 2 and 3 and pins 5 and 4 of the power DIP switch SW2, the positive terminals of the first color temperature LED W5 and W6, and the positive terminals of the second color temperature LED C11 and C12, with a total product power of 6W.

[0042] In summary, the power DIP switch of this invention is mounted on the aluminum substrate, specifically on the front of the lamp body. After installation, the power DIP switch remains functional, making power adjustment more convenient. This invention, through its flicker-eliminating circuit, provides high isolation and anti-interference capabilities, eliminating low-frequency flicker, suppressing low-frequency jitter caused by mains power distortion, improving dimming performance, and reducing discomfort such as eye strain, headaches, and dry eyes. Furthermore, the flicker-eliminating circuit improves color accuracy, meeting the needs of professional users requiring precise color calibration and enhancing the user experience. For those who spend long hours using computers, the flicker-eliminating function can reduce the incidence of headaches and dry eyes.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit for adjusting power via a DIP switch at the output terminal, characterized in that: The device includes a driver power supply, first color temperature LEDs W1-W6, second color temperature LEDs C7-C12, a color temperature DIP switch SW1, and a power DIP switch SW2. Pin 2 of the color temperature DIP switch SW1 is connected to the V+ terminal of the driver power supply. Pin 1 of the color temperature DIP switch SW1 is connected to the positive terminals of both first color temperature LEDs W1 and W2. The negative terminal of first color temperature LED W1 is connected to the positive terminal of first color temperature LED W3. The negative terminal of first color temperature LED W2 is connected to the positive terminal of first color temperature LED W4. The negative terminals of both first color temperature LEDs W3 and W4 are connected to pin 5 of the power DIP switch SW2. Pin 4 of the power DIP switch SW2 is connected to the positive terminals of both first color temperature LEDs W5 and W6. Pin 4 of the color temperature DIP switch SW1 is connected to the positive terminals of the second color temperature LEDs C7 and C8, respectively. The negative terminal of the second color temperature LED C7 is connected to the positive terminal of the second color temperature LED C9, and the negative terminal of the second color temperature LED C8 is connected to the positive terminal of the second color temperature LED C10. The negative terminals of the second color temperature LEDs C9 and C10 are both connected to pin 2 of the power DIP switch SW2. Pin 3 of the power DIP switch SW2 is connected to the positive terminals of the second color temperature LEDs C11 and C12, respectively. The negative terminals of the first color temperature LEDs W5 and W6, the negative terminals of the second color temperature LEDs C11 and C12, and pins 1 and 6 of the power DIP switch SW2 are all connected to the V- terminal of the drive power supply.

2. The circuit for adjusting power via a DIP switch at the output terminal according to claim 1, characterized in that: The color temperature of the first color temperature LED beads W1-W6 is 27K.

3. The circuit for adjusting power via a DIP switch at the output terminal according to claim 1, characterized in that: The second color temperature LED beads, C7-C12, have a color temperature of 40K.

4. The circuit for adjusting power via a DIP switch at the output terminal according to claim 1, characterized in that: Pin 3 of the color temperature DIP switch SW1 is connected to the positive terminals of diodes DS4 and DS5 respectively. The negative terminal of diode DS4 is connected to pin 1 of the color temperature DIP switch SW1, and the negative terminal of diode DS5 is connected to pin 4 of the color temperature DIP switch SW1.

5. The circuit for adjusting power via a DIP switch at the output terminal according to claim 1, characterized in that: The driving power supply includes an AC-CC chip. The CC+ pin of the AC-CC chip is connected to the positive terminal of the rectifier diode DS2. The negative terminal of the rectifier diode DS2 is connected to one end of the electrolytic capacitor CE1 and the resistor RS8, respectively. The CC- pin of the AC-CC chip is connected to the other end of the electrolytic capacitor CE1 and the resistor RS8, respectively.

6. The circuit for adjusting power via a DIP switch at the output terminal according to claim 1, characterized in that: It also includes a frequency reduction lightning circuit, which includes a MOSFET Q1. The drain of the MOSFET Q1 is connected to the CC+ pin of the AC-CC chip, the source of the MOSFET Q1 is connected to the positive terminal of the diode DZ2, the gate of the MOSFET Q1 and the negative terminal of the diode DZ2 are both connected to one end of the electrolytic capacitor CE2, and the other end of the electrolytic capacitor CE2 is connected to the CC- pin of the AC-CC chip.

7. The circuit for adjusting power via a DIP switch at the output terminal according to claim 6, characterized in that: The drain of the MOS transistor Q1 is also connected to one end of the resistor RS9 and the positive terminal of the diode DS3. The other end of the resistor RS9 and the negative terminal of the diode DS3 are both connected to the negative terminal of the diode DZ1. The positive terminal of the diode DZ1 is connected to one end of the electrolytic capacitor CE2.

8. The circuit for adjusting power via a DIP switch at the output terminal according to claim 6, characterized in that: A resistor RS10 is also connected between the gate of the MOS transistor Q1 and one end of the electrolytic capacitor CE2.

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