A flame lamp control circuit and a flame lamp

Abstract

The utility model provides a flame lamp control circuit and flame lamp, it includes: power supply, control unit with power supply electricity connection, on -off unit, light source, and one end with light source electricity connection, the other end with control unit electricity connection's brightness adjusting unit, brightness adjusting unit is used for controlling the brightness of light source, light source includes: the constant light source and flickering light source of independence each other, one end of constant light source links with power supply, the other end of constant light source is electrically connected with brightness adjusting unit, constant light source is in constant state, and constant light source is located in the lower part of the luminous part of flame lamp, is used for simulating constant part of the bottom of flame, one end of flickering light source passes through on -off unit and is electrically connected with power supply, on -off unit is electrically connected with control unit, the other end of flickering light source is electrically connected with brightness adjusting unit, and control unit controls the on -off of on -off unit realizes the bright and dark switching of flickering light source, flickering light source is located in the upper part of the luminous part of flame lamp, is used for imitating the flickering part of flame.

Description

Technical Field

[0001] This utility model belongs to the field of control circuit technology, and specifically relates to a flame lamp control circuit and a flame lamp. Background Technology

[0002] With technological advancements, in addition to their conventional lighting functions, some lamps also possess decorative properties with special light-emitting effects. For example, the currently popular flame lamps, which simulate the flickering light of burning flames, are a type of decorative lamp with special light-emitting effects. Traditional flame lamps include: a control unit, a control signal output unit connected to the control unit, and multiple light sources connected to the control signal output unit. The control unit, based on a preset control strategy, outputs power signals to control adjacent light sources to alternately energize, creating a preliminary flickering effect. The power signals can also control the on / off state of each LED in each light source, further enhancing the flickering effect. However, while these flame lamps can simulate the flickering effect of flames, the flickering pattern is rather stiff and differs significantly from the flickering pattern of flames in real life, thus reducing the user experience and hindering the widespread adoption of flame lamps. Utility Model Content

[0003] The main purpose of this utility model is to provide a flame lamp control circuit and a flame lamp. One end of a constantly lit light source is directly connected to a power supply, and the other end is electrically connected to a brightness adjustment unit. The constantly lit light source is in a constantly lit state and is located at the lower part of the luminous part of the flame lamp, used to simulate the constantly lit part at the bottom of a flame. One end of a flashing light source is electrically connected to the light source via an on / off unit, and the other end is electrically connected to the brightness adjustment unit. The on / off unit is electrically connected to the control unit. The control power supply controls the on / off state of the on / off unit to switch the flashing light source between on and off. The flashing light source is located in the middle and upper part of the luminous part of the flame lamp, used to imitate the flashing part of a flame. The above scheme ensures that the constant-on light source remains constantly lit, acting as the bottom flame core, while the flashing light source blinks, acting as the top flame. The control unit controls the overall brightness of the flame by adjusting the overall brightness of the light source. This not only makes the control method of the flame lamp flexible but also closely resembles the flickering pattern of flames in real life. Furthermore, compared to traditional flame lamp control circuits that only use two sets of light sources to alternately light up and off to simulate a flame, this scheme overcomes the shortcomings of rigid flickering patterns that differ significantly from the flickering patterns of real flames, improving the user experience and facilitating the widespread adoption of flame lamps.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A flame lamp control circuit includes: a power supply, a control unit, an on / off unit, a brightness adjustment unit, and a light source. One end of the brightness adjustment unit is electrically connected to the light source, and the other end of the brightness adjustment unit is electrically connected to the control unit. The brightness adjustment unit is used to control the brightness of the light source. The light source includes: a constantly lit light source and a flashing light source that are independent of each other. One end of the constantly lit light source is connected to the power supply, and the other end of the constantly lit light source is electrically connected to the brightness adjustment unit. The constantly lit light source is in a constantly lit state and is located at the lower part of the light-emitting part of the flame lamp to simulate the constantly lit part at the bottom of the flame. One end of the flashing light source is electrically connected to the power supply through the switching unit, and the other end of the flashing light source is electrically connected to the brightness adjustment unit. The switching unit is electrically connected to the control unit. The control unit controls the switching of the switching unit to achieve the switching of the flashing light source on and off. The flashing light source is located in the upper middle part of the light-emitting part of the flame lamp and is used to imitate the flashing part of the flame.

[0005] As a preferred embodiment of the flame lamp control circuit, the control unit includes a control chip U3, and the switching unit includes a MOSFET P2. The gate of the MOSFET P2 is connected to the control chip U3, the drain of the MOSFET P2 is connected to the flashing light source, and the source of the MOSFET P2 is connected to the power supply, thereby enabling the control unit to control the switching of the switching unit and thus control the switching of the flashing light source.

[0006] As a preferred embodiment of the flame lamp control circuit, the brightness adjustment unit includes: multiple brightness adjustment modules, each brightness adjustment module including: a MOS transistor; the source of the MOS transistor of each brightness adjustment module is connected to the signal interface of the light source, the gate of each MOS transistor is connected to the signal interface of the control unit, and the drain of each MOS transistor is connected to ground.

[0007] As a preferred embodiment of the flame lamp control circuit, each brightness adjustment module further includes a first current-limiting resistor, a second current-limiting resistor, and a protection resistor; the first current-limiting resistor is disposed between the MOS transistor and the light source, and the first current-limiting resistor includes: a plurality of resistors connected in parallel, one end of which is connected to the signal interface of the light source, and the other end of which is connected to the source of the MOS transistor; one end of the second current-limiting resistor is connected to the gate of the MOS transistor, and the other end of the second current-limiting resistor is connected to the signal interface of the control unit; one end of the protection resistor is connected to one end of the second current-limiting resistor and the gate of the MOS transistor, and the other end of the protection resistor is connected to the drain of the MOS transistor and ground, respectively.

[0008] As a preferred embodiment of the flame lamp control circuit, the constantly lit light source includes: multiple constantly lit LED units, each constantly lit LED unit including: one or more light-emitting diodes arranged in parallel; if the constantly lit LED unit includes one light-emitting diode, the positive terminal of the light-emitting diode is electrically connected to the power supply and the switching unit respectively, and the negative terminal of the light-emitting diode is electrically connected to a signal interface; if the constantly lit LED unit includes multiple light-emitting diodes arranged in parallel, the multiple positive terminals of the parallel light-emitting diodes are connected to form a positive terminal, and the multiple negative terminals are connected to form a negative terminal, the positive terminal is electrically connected to the power supply and the switching unit respectively, and the negative terminal is electrically connected to a signal interface.

[0009] As a preferred embodiment of the flame lamp control circuit, the flashing light source includes: multiple flashing LED units, each flashing LED unit including: one or more light-emitting diodes arranged in parallel; if the flashing LED unit includes one light-emitting diode, the positive terminal of the light-emitting diode is electrically connected to the switching unit, and the negative terminal of the light-emitting diode is electrically connected to a signal interface; if the flashing LED unit includes multiple light-emitting diodes arranged in parallel, the multiple positive terminals of the parallel light-emitting diodes are connected to form a positive terminal, and the multiple negative terminals are connected to form a negative terminal, the positive terminal is electrically connected to the switching unit, and the negative terminal is electrically connected to a signal interface.

[0010] As a preferred embodiment of the flame lamp control circuit, the flame lamp control circuit further includes: a switch switching unit electrically connected to the control unit, the switch switching unit including: a switch S1; one end of the switch S1 is connected to the control chip U3, and the other end of the switch S1 is connected to ground, the switch S1 controls the switching of the constant light source and the flashing light source through the control chip U3.

[0011] This utility model also provides a flame lamp, which includes the flame lamp control circuit as described in any of the above claims.

[0012] The beneficial effects of this utility model are: This utility model proposes a flame lamp control circuit and a flame lamp, including: a power supply, a control unit, an on / off unit, a brightness adjustment unit, and a light source. The power supply is electrically connected to the control circuit. One end of the brightness adjustment unit is electrically connected to the light source, and the other end of the brightness adjustment unit is electrically connected to the control unit. The brightness adjustment unit is used to adjust the brightness of the light source. The light source includes: a constantly lit light source and a flickering light source, which are independent of each other. One end of the constantly lit light source is directly electrically connected to the power supply, and the other end of the constantly lit light source is electrically connected to the brightness adjustment unit. The constantly lit light source is in a constantly lit state and is located at the lower part of the light-emitting part of the flame lamp, used to simulate the constantly lit part at the bottom of the flame. One end of the flickering light source is electrically connected to the light source through the on / off unit, and the other end of the flickering light source is electrically connected to the brightness adjustment unit. The on / off unit is electrically connected to the control unit. The control power supply controls the on / off state of the on / off unit to switch the flickering light source on and off. The flickering light source is located in the middle and upper part of the light-emitting part of the flame lamp, used to imitate the flickering part of the flame. The above scheme ensures that the constant-on light source remains constantly lit, acting as the bottom flame core, while the flashing light source blinks, acting as the top flame. The control unit controls the overall brightness of the flame by adjusting the overall brightness of the light source. This not only makes the control method of the flame lamp flexible but also closely resembles the flickering pattern of flames in real life. Furthermore, compared to traditional flame lamp control circuits that only use two sets of light sources to alternately light up and off to simulate a flame, this scheme overcomes the shortcomings of rigid flickering patterns that differ significantly from the flickering patterns of real flames, improving the user experience and facilitating the widespread adoption of flame lamps. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the flame lamp control circuit provided in Embodiment 1 of this utility model; Figure 2 yes Figure 1 The diagram shows the overall circuit diagram of the flame lamp control circuit. Figure 3 yes Figure 2 An enlarged schematic diagram of the circuit diagram of the control unit, on / off unit, and switch switching unit in the flame lamp control circuit shown. Figure 4 yes Figure 2 An enlarged schematic diagram of the light source circuit in the flame lamp control circuit shown. Figure 5 yes Figure 2An enlarged schematic diagram of the brightness adjustment unit of the flame lamp control circuit shown. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] With technological advancements, in addition to their conventional lighting functions, some lamps also possess decorative properties with special light-emitting effects. For example, the currently popular flame lamps, which simulate the flickering light of burning flames, are a type of decorative lamp with special light-emitting effects. Traditional flame lamps include: a control unit, a control signal output unit connected to the control unit, and multiple light sources connected to the control signal output unit. The control unit, based on a preset control strategy, outputs power signals to control adjacent light sources to alternately energize, creating a preliminary flickering effect. The power signals can also control the on / off state of each LED in each light source, further enhancing the flickering effect. However, while these flame lamps can simulate the flickering effect of flames, the flickering pattern is rather stiff and differs significantly from the flickering pattern of flames in real life, thus reducing the user experience and hindering the widespread adoption of flame lamps.

[0016] like Figure 1 As shown, this utility model provides a flame lamp control circuit, which includes: a flame lamp control circuit, characterized in that it includes: a power supply 10, a control unit 20, an on / off unit 30, a brightness adjustment unit 40, a light source 50, and a switch switching unit 60. One end of the brightness adjustment unit 40 is electrically connected to the light source 50, and the other end of the brightness adjustment unit 40 is electrically connected to the control unit 20. The brightness adjustment unit 40 is used to control the brightness of the light source 50. The switch switching unit 60 is electrically connected to the control unit 20. The switch switching unit 60 controls the on / off of the light source 50 through the control unit 20. The light source 50 includes: a constantly lit light source 51 and a flashing light source 52 that are independent of each other. One end of the constantly lit light source 51 is connected to the power supply 10, and the other end of the constantly lit light source is electrically connected to the brightness adjustment unit 40. The constantly lit light source 51 is in a constantly lit state and is located at the lower part of the light-emitting part of the flame lamp to simulate the constantly lit part at the bottom of the flame. One end of the flashing light source 52 is electrically connected to the power supply 10 through the on / off unit 30, and the other end of the flashing light source 52 is electrically connected to the brightness adjustment unit 40. The on / off unit 30 is electrically connected to the control unit 20. The control unit 20 controls the on / off state of the on / off unit 30 to achieve the switching of the flashing light source 52 on and off. The flashing light source 52 is located in the upper middle part of the light-emitting part of the flame lamp and is used to imitate the flashing part of the flame.

[0017] In this invention, the above-mentioned scheme ensures that the constant-on light source 51 remains constantly lit, acting as the bottom flame core, while the flashing light source 52 blinks, acting as the top flame. The control unit 20 controls the overall brightness of the flame by adjusting the brightness of the light source 50 through the brightness adjustment unit 40. This not only makes the control method of the flame lamp flexible but also closely resembles the flickering pattern of flames in real life. Furthermore, compared to traditional flame lamp control circuits that simulate flames by alternately lighting two sets of light sources, this scheme overcomes the shortcomings of rigid flickering patterns that differ significantly from the flickering patterns of flames in real life, improving the user experience and facilitating the promotion of flame lamps.

[0018] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the control unit 20 further includes a control chip U3, and the on / off unit 30 includes a MOS transistor P2. The gate of the MOS transistor P2 is connected to the second pin of the control chip U3, the drain of the MOS transistor P2 is connected to the flashing light source 52, and the source of the MOS transistor P2 is connected to the power supply 10 and the constant light source 51, respectively. Thus, the control chip U3 controls the on / off state of the MOS transistor P2 to achieve the flashing of the flashing light source 52.

[0019] To protect the MOSFET P2 and the control chip U3, the switching unit 30 further includes a resistor WA1 and a resistor R25. The resistor WA1 is located between the gate of the MOSFET P2 and the control chip U3. One end of the resistor WA1 is connected to the second pin of the control chip U3, and the other end of the resistor WA1 is connected to the gate of the MOSFET P2. The resistor WA1 is used for overcurrent protection of the control chip U3. One end of the resistor R25 is connected to the gate of the MOSFET P2 and one end of the resistor WA1, and the other end of the resistor R25 is connected to the source of the MOSFET P2, the power supply 10, and the constantly lit light source 51. The resistor R25 is used to protect the MOSFET P2.

[0020] Furthermore, the brightness adjustment unit 40 includes: a plurality of brightness adjustment modules 41, each brightness adjustment module 41 including: a MOS transistor 411; the source of the MOS transistor 411 of each brightness adjustment module 41 is connected to the signal interface of the light source 50, the gate of the MOS transistor 411 of each brightness adjustment module 41 is connected to the signal interface of the control unit 20, and the drain of the MOS transistor 411 of each brightness adjustment module 41 is connected to ground. The control unit 20 controls the brightness of the light source 50 by the on / off state of the MOS transistor 411. In this utility model, the number of brightness adjustment modules 41 is determined according to the size of the light source 50, and the brightness adjustment modules 41 only need to be able to adjust the brightness of the light source 50. This utility model does not limit this.

[0021] To protect the MOSFET 411 and the control unit 20, and to meet the current requirements of the light source 50, each brightness adjustment module 41 further includes a first current-limiting resistor 412, a second current-limiting resistor 413, and a protection resistor 414. The first current-limiting resistor 412 is located between the MOSFET 411 and the light source 50. The first current-limiting resistor 412 includes multiple resistors connected in parallel. One end of the parallel connection is connected to the signal interface of the light source 50, and the other end is connected to the source of the MOSFET 411. The number of resistors in the first current-limiting resistor 412 is determined according to the current required by the light source 50. In this invention, the number of resistors in the first current-limiting resistor 412 is preferably two, but is not limited to this invention. In this invention, the number of the first current-limiting resistors 412 is determined according to the current required by the light source 50, and this invention does not limit this; one end of the second current-limiting resistor 413 is connected to the gate of the MOS transistor 411, and the other end of the second current-limiting resistor 413 is connected to the signal interface of the control unit 20. The second current-limiting resistor 413 limits the current of the control unit 20 to prevent the control unit 20 from being damaged by overcurrent; one end of the protection resistor 414 is connected to one end of the second current-limiting resistor 413 and the gate of the MOS transistor 411, and the other end of the protection resistor 414 is connected to the drain of the MOS transistor 411 and ground, respectively. The protection resistor 414 is used to protect the MOS transistor 411 from damage.

[0022] Specifically, in the embodiments of this utility model, the brightness adjustment unit 40 includes: a first brightness adjustment module 42, a second brightness adjustment module 43, a third brightness adjustment module 44, a fourth brightness adjustment module 45, a fifth brightness adjustment module 46, a sixth brightness adjustment module 47, a seventh brightness adjustment module 48, and an eighth brightness adjustment module 49. The first brightness adjustment module 42 includes: resistors R1, R2, R3, R18 and MOSFET Q2. One end of resistor R1 and one end of resistor R2 are both connected to the signal interface A1 of the light source 50. The other end of resistor R1 and the other end of resistor R2 are both connected to the source of MOSFET Q2. The gate of MOSFET Q2 is connected to one end of resistor R18 and one end of resistor R3, respectively. The drain of MOSFET Q2 is connected to the other end of resistor R3 and ground, respectively. The other end of resistor R18 is connected to the signal interface NB1 of the control chip U3. The second brightness adjustment module 43 includes: resistors R4, R6, R7, and R21, and a MOSFET Q3. One end of resistor R4 and one end of resistor R6 are both connected to the signal interface A2 of the light source 50. The other end of resistor R4 and the other end of resistor R6 are both connected to the source of the MOSFET Q3. The gate of the MOSFET Q3 is connected to one end of resistor R21 and one end of resistor R7, respectively. The drain of the MOSFET Q3 is connected to the other end of resistor R7 and ground, respectively. The other end of resistor R21 is connected to the signal interface NB2 of the control chip U3. The third brightness adjustment module 44 includes: resistors R9, R11, R12, R24, and MOSFET Q4. One end of resistor R9 and one end of resistor R11 are both connected to the signal interface A3 of the light source 50. The other end of resistor R9 and the other end of resistor R11 are both connected to the source of MOSFET Q4. The gate of MOSFET Q4 is connected to one end of resistor R24 ​​and one end of resistor R12, respectively. The drain of MOSFET Q4 is connected to the other end of resistor R12 and ground, respectively. The other end of resistor R24 ​​is connected to the signal interface NB3 of the control chip U3. The fourth brightness adjustment module 45 includes: resistors R16, R19, R20, and R28, and a MOSFET Q5. One end of resistor R16 and one end of resistor R19 are both connected to the signal interface A4 of the light source 50. The other end of resistor R16 and the other end of resistor R19 are both connected to the source of the MOSFET Q5. The gate of the MOSFET Q5 is connected to one end of resistor R20 and one end of resistor R28, respectively. The drain of the MOSFET Q5 is connected to the other end of resistor R20 and ground, respectively. The other end of resistor R28 is connected to the signal interface NB4 of the control chip U3. The fifth brightness adjustment module 46 includes: resistors R31, R32, R35, and R36, and a MOSFET Q6. One end of resistor R32 and one end of resistor R35 are both connected to the signal interface A5 of the light source 50. The other end of resistor R32 and the other end of resistor R35 are both connected to the source of the MOSFET Q6. The gate of the MOSFET Q6 is connected to one end of resistor R31 and one end of resistor R36, respectively. The drain of the MOSFET Q6 is connected to the other end of resistor R36 and ground, respectively. The other end of resistor R31 is connected to the signal interface NB5 of the control chip U3. The sixth brightness adjustment module 47 includes: resistors R22, R26, R30, R34, and MOSFET Q9. One end of resistor R22 and one end of resistor R26 are both connected to the signal interface A6 of the light source 50. The other end of resistor R22 and the other end of resistor R26 are both connected to the source of MOSFET Q9. The gate of MOSFET Q9 is connected to one end of resistor R30 and one end of resistor R34, respectively. The drain of MOSFET Q9 is connected to the other end of resistor R34 and ground, respectively. The other end of resistor R30 is connected to the signal interface NB6 of the control chip U3. The seventh brightness adjustment module 48 includes: resistors R8, R10, R27, R37, and MOSFET Q7. One end of resistor R8 and one end of resistor R10 are both connected to the signal interface A7 of the light source 50. The other end of resistor R8 and the other end of resistor R10 are both connected to the source of MOSFET Q7. The gate of MOSFET Q7 is connected to one end of resistor R27 and one end of resistor R37, respectively. The drain of MOSFET Q7 is connected to the other end of resistor R37 and ground, respectively. The other end of resistor R27 is connected to the signal interface NB7 of the control chip U3. The eighth brightness adjustment module 49 includes: resistors R14, R23, R29, and R33, and a MOSFET Q8. One end of resistor R33 and one end of resistor R29 are both connected to the signal interface A8 of the light source 50. The other end of resistor R33 and the other end of resistor R29 are both connected to the source of the MOSFET Q8. The gate of the MOSFET Q8 is connected to one end of resistor R23 and one end of resistor R14, respectively. The drain of the MOSFET Q8 is connected to the other end of resistor R14 and ground, respectively. The other end of resistor R23 is connected to the signal interface NB1 of the control chip U3.

[0023] Furthermore, the constantly lit light source 51 includes: a plurality of constantly lit LED units, each constantly lit LED unit including: one or more light-emitting diodes arranged in parallel; If the always-on LED unit includes a light-emitting diode, then the positive terminal of the light-emitting diode is electrically connected to the power supply 10 and the switching unit 30, respectively, and the negative terminal of the light-emitting diode is electrically connected to a signal interface. If the constantly lit LED unit includes multiple light-emitting diodes arranged in parallel, then the multiple positive terminals of the parallel light-emitting diodes are connected to form a positive terminal, and the multiple negative terminals are connected to form a negative terminal. The positive terminal is electrically connected to the power supply 10 and the switching unit 30, respectively, and the negative terminal is electrically connected to a signal interface.

[0024] Specifically, in this embodiment of the present invention, the constantly lit LED unit includes: a parallel combination of two light-emitting diodes, wherein the positive terminals of the two light-emitting diodes in the parallel combination are connected, the negative terminals of multiple two light-emitting diodes in the parallel combination are connected, the positive terminals of the parallel combination are respectively connected to the other end of the resistor R25, the source of the MOS transistor P2, and the input interface BAT+ of the power supply 10, and the negative terminals of the parallel combination are respectively connected to the signal interface A1, the signal interface A2, and the signal interface A3 of the light source 50, the signal interface NB1 of the control chip U3 is connected to the twelfth pin of the control chip U3, the signal interface NB2 of the control chip U3 is connected to the eleventh pin of the control chip U3, and the signal interface NB3 of the control chip U3 is connected to the tenth pin of the control chip U3; The constantly lit LED unit includes: a single light-emitting diode, the positive terminals of multiple single light-emitting diodes are all connected together, and after connection, they are respectively connected to the other end of the resistor R25, the source of the MOSFET P2, and the power supply input interface BAT+. The negative terminals of multiple single light-emitting diodes are respectively connected to the signal interfaces A4, A5, A6, A7, and A8 of the light source 50. The signal interface NB4 of the control chip U3 is connected to the ninth pin of the control chip U3. The signal interface NB5 of the control chip U3 is connected to the eighth pin of the control chip U3. The signal interface NB6 of the control chip U3 is connected to the seventh pin of the control chip U3. The signal interface NB7 of the control chip U3 is connected to the sixth pin of the control chip U3. The signal interface NB8 of the control chip U3 is connected to the fifth pin of the control chip U3.

[0025] Furthermore, the flashing light source 52 includes: a plurality of flashing LED units, each flashing LED unit including: one or more light-emitting diodes arranged in parallel; if the flashing LED unit includes one light-emitting diode, the positive terminal of the light-emitting diode is electrically connected to the switching unit 30, and the negative terminal of the light-emitting diode is electrically connected to a signal interface; if the flashing LED unit includes a plurality of light-emitting diodes arranged in parallel, the plurality of positive terminals of the parallel-arranged light-emitting diodes are connected to form a positive terminal, and the plurality of negative terminals are connected to form a negative terminal, the positive terminal is electrically connected to the switching unit 30, and the negative terminal is electrically connected to a signal interface.

[0026] Specifically, in this embodiment of the utility model, when the flashing LED unit includes a light-emitting diode, the positive terminals of multiple individual light-emitting diodes are all connected to the drain of the MOS transistor P2, the negative terminals of multiple individual light-emitting diodes are all connected to the signal interface A1 of the light source 50, the signal interface NB1 of the control chip U3 is connected to the twelfth pin of the control chip U3, and the multiple individual light-emitting diodes extend into the gap of the constantly lit light source 51. On the basis of the constantly lit light source 51 being constantly lit, the flashing effect of the flashing light source 52 is added, so that the constantly lit light source 51 also has a flashing effect when simulating the flame core, making the flame lamp effect more vivid and lifelike, which is conducive to the promotion of flame lamps; When the flashing LED unit includes two LEDs connected in parallel, the positive terminals of the two LEDs in the parallel combination are connected, the negative terminals of multiple LEDs in the parallel combination are connected, the positive terminals of the parallel combination are all connected to the drain of the MOS transistor P2, and the negative terminals of the parallel combination are respectively connected to the signal interfaces A2, A3, A4, A5, A6, and A7 of the light source 50. The signal interface NB2 of the control chip is connected to the eleventh pin of the control chip U3, the signal interface NB3 of the control chip is connected to the tenth pin of the control chip U3, the signal interface NB4 of the control chip is connected to the ninth pin of the control chip U3, the signal interface NB5 of the control chip is connected to the eighth pin of the control chip U3, the signal interface NB6 of the control chip is connected to the seventh pin of the control chip U3, and the signal interface NB7 of the control chip is connected to the sixth pin of the control chip U3. When the flashing LED unit includes three LEDs connected in parallel, the positive terminals of the three LEDs in the parallel combination are connected together, the negative terminals of the three LEDs in the parallel combination are connected together, the positive terminals of the parallel combination are all connected to the drain of the MOS transistor P2, the negative terminals of the parallel combination are all connected to the signal interface A8 of the light source 50, and the signal interface NB8 of the control chip U3 is connected to the fifth pin of the control chip U3.

[0027] Furthermore, the switch switching unit 60 includes a switch S1; one end of the switch S1 is connected to the fourth pin of the control chip U3, and the other end of the switch S1 is connected to ground. The switch S1 controls the switching of the constant light source 51 and the flashing light source 52 through the control chip U3, and then the switch switching unit 60 controls the switching of the light source 50 through the control unit 20.

[0028] This utility model also provides a flame lamp, which includes the flame lamp control circuit as described above.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this invention, and these variations still fall within the protection scope of this utility model.

Claims

1. A flame lamp control circuit, characterized in that, include: The system includes a power supply, a control unit, an on / off unit, a brightness adjustment unit, and a light source. One end of the brightness adjustment unit is electrically connected to the light source, and the other end of the brightness adjustment unit is electrically connected to the control unit. The brightness adjustment unit is used to control the brightness of the light source. The light source includes two independent light sources: a constantly lit light source and a flashing light source. One end of the constantly lit light source is connected to the power supply, and the other end of the constantly lit light source is electrically connected to the brightness adjustment unit. The constantly lit light source is in a constantly lit state and is located at the lower part of the light-emitting part of the flame lamp to simulate the constantly lit part at the bottom of the flame. One end of the flashing light source is electrically connected to the power supply through the switching unit, and the other end of the flashing light source is electrically connected to the brightness adjustment unit. The switching unit is electrically connected to the control unit. The control unit controls the switching of the switching unit to achieve the switching of the flashing light source on and off. The flashing light source is located in the upper middle part of the light-emitting part of the flame lamp and is used to imitate the flashing part of the flame.

2. The flame lamp control circuit as described in claim 1, characterized in that, The control unit includes a control chip U3, and the on / off unit includes a MOS transistor P2. The gate of the MOS transistor P2 is connected to the control chip U3, the drain of the MOS transistor P2 is connected to the flashing light source, and the source of the MOS transistor P2 is connected to the power supply, thereby enabling the control chip U3 to control the on / off state of the switching unit and thus control the on / off state of the flashing light source.

3. The flame lamp control circuit as described in claim 1, characterized in that, The brightness adjustment unit includes: multiple brightness adjustment modules, each of the brightness adjustment modules including: a MOS transistor; The source of the MOS transistor in each brightness adjustment module is connected to the signal interface of the light source, the gate of each MOS transistor is connected to the signal interface of the control unit, and the drain of each MOS transistor is connected to ground.

4. The flame lamp control circuit as described in claim 3, characterized in that, Each of the brightness adjustment modules further includes a first current-limiting resistor, a second current-limiting resistor, and a protection resistor; The first current-limiting resistor is disposed between the MOS transistor and the light source. The first current-limiting resistor includes: a plurality of resistors connected in parallel, one end of which is connected to the signal interface of the light source, and the other end of which is connected to the source of the MOS transistor; one end of the second current-limiting resistor is connected to the gate of the MOS transistor, and the other end of the second current-limiting resistor is connected to the signal interface of the control unit; one end of the protection resistor is connected to one end of the second current-limiting resistor and the gate of the MOS transistor, and the other end of the protection resistor is connected to the drain of the MOS transistor and ground, respectively.

5. The flame lamp control circuit as described in claim 1, characterized in that, The constant-light source includes: a plurality of constant-light LED units, each constant-light LED unit including: one or more light-emitting diodes arranged in parallel; If the always-on LED unit includes a light-emitting diode, then the positive terminal of the light-emitting diode is electrically connected to the power supply and the switching unit, and the negative terminal of the light-emitting diode is electrically connected to a signal interface. If the constantly lit LED unit includes multiple light-emitting diodes arranged in parallel, then the multiple positive terminals of the parallel light-emitting diodes are connected to form a positive terminal, and the multiple negative terminals are connected to form a negative terminal. The positive terminal is electrically connected to the power supply and the switching unit, respectively, and the negative terminal is electrically connected to a signal interface.

6. The flame lamp control circuit as described in claim 1, characterized in that, The flashing light source includes: a plurality of flashing LED units, each flashing LED unit including: one or more light-emitting diodes arranged in parallel; If the flashing LED unit includes a light-emitting diode, then the positive terminal of the light-emitting diode is electrically connected to the switching unit, and the negative terminal of the light-emitting diode is electrically connected to a signal interface; If the flashing LED unit includes multiple light-emitting diodes arranged in parallel, then the multiple positive terminals of the parallel light-emitting diodes are connected to form a positive terminal, and the multiple negative terminals are connected to form a negative terminal. The positive terminal is electrically connected to the switching unit, and the negative terminal is electrically connected to a signal interface.

7. The flame lamp control circuit as described in claim 2, characterized in that, The flame lamp control circuit further includes: a switch switching unit electrically connected to the control unit, the switch switching unit including: switch S1; One end of the switch S1 is connected to the control chip U3, and the other end of the switch S1 is connected to ground. The switch S1 controls the switching of the constant light source and the flashing light source through the control chip U3.

8. A flame lamp, characterized in that, Includes the flame lamp control circuit as described in any one of claims 1-7.

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