CN217643790U - LED drive control circuit - Google Patents

LED drive control circuit Download PDF

Info

Publication number
CN217643790U
CN217643790U CN202221255975.5U CN202221255975U CN217643790U CN 217643790 U CN217643790 U CN 217643790U CN 202221255975 U CN202221255975 U CN 202221255975U CN 217643790 U CN217643790 U CN 217643790U
Authority
CN
China
Prior art keywords
switch
control circuit
lamp
led
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221255975.5U
Other languages
Chinese (zh)
Inventor
黄健青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sms Professional Audio Equipment Co ltd
Original Assignee
Sms Professional Audio Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sms Professional Audio Equipment Co ltd filed Critical Sms Professional Audio Equipment Co ltd
Priority to CN202221255975.5U priority Critical patent/CN217643790U/en
Application granted granted Critical
Publication of CN217643790U publication Critical patent/CN217643790U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The utility model provides a LED drive control circuit relates to the audio signal processing field. The design comprises a protection circuit and a lamp control circuit; the protection circuit comprises a temperature compensation module, a filtering anti-interference module, a fault protection switch, a signal amplification circuit, a pulse anti-interference module, a switch, an AC220V voltage power supply port, a discharge resistor R22 and a transformer power supply port, and is electrically connected with the lamp control circuit; the filtering anti-interference module comprises a capacitor C7 and a capacitor C8, the first end of the C7 is connected with the first end of the switch, and the second end of the C7 and the first end of the C8 are connected with the second end of the switch. The design can filter the interference on the power supply and keep the output voltage of the power supply stable. The components of the fault protection switch are mainly used for protecting current and voltage instability so as to ensure the normal application of the designed circuit in an audio system.

Description

LED drive control circuit
Technical Field
The utility model relates to a control circuit specifically is LED drive control circuit belongs to audio signal processing technology field.
Background
The rapid development of electronic information technology and network technology has advanced the new media technology, and the new media mainly depends on the network technology to carry out information transmission through mobile phones, and has strong interactivity, transmission and convenience. In order to achieve better audio and video live broadcast effect in live broadcast, live broadcast equipment needs to be connected through a live broadcast sound card, which can also be called an audio interface, for live broadcast.
When a live sound card in the current live broadcast market is connected with live broadcast equipment (such as a mobile phone) for live broadcast, when the load current of the sound card is increased instantly, the output voltage is sunk, the work of the sound card or other circuit units is interfered, voltage change signals caused by the load are coupled to other circuit units, the signals can interfere the circuit units, the normal use of the circuit units is influenced, and the influence on the use is avoided and filtered.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a LED drive control circuit just for solving above-mentioned problem to when solving among the prior art when sound card load current grow in the twinkling of an eye, can make the voltage of output sink, this can make self or other circuit unit's work receive the interference, voltage variation signal coupling that the load arouses has other circuit unit, and these signals can cause the interference to circuit unit, influence its normal use, need avoid and strain away, influence the problem of use.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the LED driving control circuit comprises a protection circuit and a lamp control circuit;
the protection circuit comprises a temperature compensation module, a filtering anti-interference module, a fault protection switch, a signal amplification circuit, a pulse anti-interference module, a switch, an AC220V voltage power supply port, a discharge resistor R22 and a transformer power supply port, and is electrically connected with the lamp control circuit;
the filtering and anti-interference module comprises a capacitor C7 and a capacitor C8, wherein the first end of the capacitor C7 is connected with the first end of the switch, and the second end of the capacitor C7 and the first end of the capacitor C8 are connected with the second end of the switch;
the temperature compensation module comprises 5 resistors which are sequentially connected in series, and a first end of the temperature compensation module is connected with a first end of the switch;
the transformer power supply port comprises a terminal RED and a terminal BLACK, and the terminal RED is connected with the second end of the temperature compensation module;
the AC220V voltage power supply port comprises a terminal ACIN and a terminal two BLACK, the second end of the switch is connected with the terminal ACIN, the second end of the capacitor C8 is connected with the second end of the discharge resistor R22 and the terminal two BLACK, and the first end of the discharge resistor R22 is connected with the second end of the switch;
the third end of the fault protection switch is connected with the second end of the temperature compensation module, the fourth end of the fault protection switch is connected with the first end of the switch, the first end of the fault protection switch is connected with the lamp control circuit, and the second end of the fault protection switch is connected with the signal amplification circuit, so that the circuit overload or the circuit damage is avoided.
Preferably, the signal amplification circuit includes triode Q1 and triode Q2, the first end of triode Q1 and the first end of triode Q2 are connected to the fault protection switch second end, triode Q2 second end ground connection, triode Q2 third end links to each other with triode Q1 second end, triode Q1 third end links to each other with the anti-jamming module of pulse.
Preferably, the pulse anti-interference module includes polarity electric capacity C1 and resistance R2, polarity electric capacity C1 and resistance R2 are parallelly connected, the first end of polarity electric capacity C1 and the first end of resistance R2 all link to each other with triode Q1 third end, polarity electric capacity C1 second end and resistance R2 second end all connect the negative pole, reduce the interference effect of pulse, the use of guarantee circuit reduces simultaneously and disturbs the influence to circuit and use.
Preferably, the lamp control circuit comprises a CHA type and a CHB type, and the CHA type and the CHB type have the same wiring form, can be mutually used as a spare, and can also be replaced, so that the normal indication of the circuit is guaranteed, and a technician is prompted to identify the circuit fault.
Preferably, a second end of the fault protection switch is connected to a freewheeling diode D1, and a second end of the freewheeling diode D1 is connected to the first end of the fault protection switch.
Preferably, the lamp control circuit includes the wiring board, the first end of wiring board and sixth end all connect the negative pole, wiring board second end connection LED peak value lamp, the LED signal lamp is connected to wiring board third end, the LED guard lamp is connected to wiring board fourth end, wiring board sixth end is established ties current-limiting resistance R3 and LED power lamp in proper order, wiring board fifth end, LED power lamp, LED guard lamp, LED signal lamp and LED peak value lamp all link to each other with the first end of fault protection switch.
The utility model provides a LED drive control circuit, its beneficial effect who possesses as follows:
1. the design circuit utilizes the capacitor C7 and the capacitor C8 to filter out the interference on the power supply and keep the output voltage of the power supply stable. The components of the fault protection switch are mainly used for protecting current and voltage instability so as to ensure the normal application of the circuit in the audio system.
2. This design circuit is through controlling circuit design LED power lamp at the lamp, the LED signal lamp, the LED guard lamp, LED peak lamp, the condition in the product use can be observed in the demonstration of these LED lamps, if: whether temperature heat dissipation, trouble, power circular telegram condition, music signal normally work to the technical staff in time makes the judgement to the circuit trouble.
Drawings
FIG. 1 is a schematic diagram of the overall circuit of the present invention;
fig. 2 is a schematic diagram of the protection circuit of the present invention;
FIG. 3 is a schematic diagram of the lamp control circuit of the present invention;
fig. 4 is a schematic diagram of the fault protection switch wiring circuit of the present invention;
FIG. 5 is a schematic diagram of the filtering and anti-interference module circuit of the present invention;
fig. 6 is a schematic diagram of the CHA-type lamp control circuit of the present invention.
Detailed Description
An embodiment of the utility model provides a LED drive control circuit.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, which include a protection circuit and a lamp control circuit;
the protection circuit comprises a temperature compensation module, a filtering anti-interference module, a fault protection switch, a signal amplification circuit, a pulse anti-interference module, a switch, an AC220V voltage power supply port, a discharge resistor R22 and a transformer power supply port, and is electrically connected with the lamp control circuit;
the filtering anti-interference module comprises a capacitor C7 and a capacitor C8, wherein the first end of the C7 is connected with the first end of the switch, and the second end of the C7 and the first end of the C8 are connected with the second end of the switch;
the temperature compensation module comprises 5 resistors which are sequentially connected in series, and a first end of the temperature compensation module is connected with a first end of the switch;
the transformer power supply port comprises a terminal RED and a terminal BLACK, and the terminal RED is connected with the second end of the temperature compensation module;
the AC220V voltage power supply port comprises a terminal ACIN and a terminal two BLACK, a second end of the switch is connected with the terminal ACIN, a second end of the capacitor C8 is connected with a second end of the discharge resistor R22 and the terminal two BLACK, and a first end of the discharge resistor R22 is connected with the second end of the switch;
and the third end of the fault protection switch is connected with the second end of the temperature compensation module, the fourth end of the fault protection switch is connected with the first end of the switch, the first end of the fault protection switch is connected with the lamp control circuit, and the second end of the fault protection switch is connected with the signal amplification circuit.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 again, the signal amplifying circuit includes a transistor Q1 and a transistor Q2, a second end of the fault protection switch is connected to a first end of the transistor Q1 and a first end of the transistor Q2, a second end of the transistor Q2 is grounded, a third end of the transistor Q2 is connected to a second end of the transistor Q1, and a third end of the transistor Q1 is connected to the pulse anti-interference module.
The pulse anti-interference module comprises a polarity capacitor C1 and a resistor R2, the polarity capacitor C1 is connected with the resistor R2 in parallel, the first end of the polarity capacitor C1 and the first end of the resistor R2 are connected with the third end of the triode Q1, and the second end of the polarity capacitor C1 and the second end of the resistor R2 are connected with the negative electrode.
The lamp control circuit comprises a CHA type and a CHB type, and the CHA type and the CHB type are connected in the same mode.
And the second end of the fault protection switch is connected with a freewheeling diode D1, and the second end of the freewheeling diode D1 is connected with the first end of the fault protection switch.
The lamp control circuit comprises a wiring board, a first end and a sixth end of the wiring board are connected with a negative electrode, a second end of the wiring board is connected with an LED peak lamp, a third end of the wiring board is connected with an LED signal lamp, a fourth end of the wiring board is connected with an LED protective lamp, a sixth end of the wiring board is sequentially connected with a current limiting resistor R3 and an LED power lamp in series, and a fifth end of the wiring board, the LED power lamp, the LED protective lamp, the LED signal lamp and the LED peak lamp are all connected with a first end of a fault protection switch
The working principle is as follows: the temperature compensation module, the filtering anti-interference module, the fault protection switch, the signal amplification circuit, the pulse anti-interference module, the switch, the AC220V voltage power supply port, the discharge resistor R22 and the transformer power supply port form a protection and filtering circuit. When the load current is increased instantaneously, the output voltage is sagged, which can cause the operation of the load or other circuit units to be interfered, the voltage variation signal caused by the load is coupled to other circuit units, and the interference on the power supply is filtered by using the capacitor C7 and the capacitor C8, so that the effect of stabilizing the output voltage of the power supply is kept. The components of the fault protection switch are mainly used for protecting current and voltage instability so as to ensure the normal application of the designed circuit in an audio system.
Through at lamp accuse circuit design LED power lamp, LED signal lamp, LED protection lamp, LED peak lamp, the condition in the product use can be observed in the demonstration of these LED lamps, if: whether temperature heat dissipation, trouble, power circular telegram condition, music signal normally work to the technical staff in time makes the judgement to the circuit trouble.
The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

  1. The LED driving control circuit is characterized by comprising a protection circuit and a lamp control circuit;
    the protection circuit comprises a temperature compensation module, a filtering anti-interference module, a fault protection switch, a signal amplification circuit, a pulse anti-interference module, a switch, an AC220V voltage power supply port, a discharge resistor R22 and a transformer power supply port, and is electrically connected with the lamp control circuit;
    the filtering and anti-interference module comprises a capacitor C7 and a capacitor C8, wherein the first end of the capacitor C7 is connected with the first end of the switch, and the second end of the capacitor C7 and the first end of the capacitor C8 are connected with the second end of the switch;
    the temperature compensation module comprises 5 resistors which are sequentially connected in series, and a first end of the temperature compensation module is connected with a first end of the switch;
    the transformer power supply port comprises a terminal RED and a terminal BLACK, and the terminal RED is connected with the second end of the temperature compensation module;
    the AC220V voltage power supply port comprises a terminal ACIN and a terminal two BLACK, the second end of the switch is connected with the terminal ACIN, the second end of the capacitor C8 is connected with the second end of the discharge resistor R22 and the terminal two BLACK, and the first end of the discharge resistor R22 is connected with the second end of the switch;
    the third end of the fault protection switch is connected with the second end of the temperature compensation module, the fourth end of the fault protection switch is connected with the first end of the switch, the first end of the fault protection switch is connected with the lamp control circuit, and the second end of the fault protection switch is connected with the signal amplification circuit.
  2. 2. The LED driving control circuit of claim 1, wherein: the signal amplification circuit comprises a triode Q1 and a triode Q2, the second end of the fault protection switch is connected with the first end of the triode Q1 and the first end of the triode Q2, the second end of the triode Q2 is grounded, the third end of the triode Q2 is connected with the second end of the triode Q1, and the third end of the triode Q1 is connected with the pulse anti-interference module.
  3. 3. The LED driving control circuit of claim 1, wherein: the pulse anti-interference module comprises a polar capacitor C1 and a resistor R2, the polar capacitor C1 is connected with the resistor R2 in parallel, the first end of the polar capacitor C1 and the first end of the resistor R2 are connected with the third end of the triode Q1, and the second end of the polar capacitor C1 and the second end of the resistor R2 are connected with the negative electrode.
  4. 4. The LED driving control circuit of claim 1, wherein: the lamp control circuit comprises a CHA type and a CHB type, and the CHA type and the CHB type are connected in the same mode.
  5. 5. The LED driving control circuit of claim 1, wherein: and the second end of the fault protection switch is connected with a freewheeling diode D1, and the second end of the freewheeling diode D1 is connected with the first end of the fault protection switch.
  6. 6. The LED driving control circuit of claim 1, wherein: the lamp control circuit comprises a wiring board, a first end and a sixth end of the wiring board are connected with a negative electrode, a second end of the wiring board is connected with an LED peak lamp, a third end of the wiring board is connected with an LED signal lamp, a fourth end of the wiring board is connected with an LED protective lamp, the sixth end of the wiring board is sequentially connected with a current limiting resistor R3 and an LED power lamp in series, and a fifth end of the wiring board, the LED power lamp, the LED protective lamp, the LED signal lamp and the LED peak lamp are all connected with a first end of a fault protection switch.
CN202221255975.5U 2022-05-24 2022-05-24 LED drive control circuit Active CN217643790U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221255975.5U CN217643790U (en) 2022-05-24 2022-05-24 LED drive control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221255975.5U CN217643790U (en) 2022-05-24 2022-05-24 LED drive control circuit

Publications (1)

Publication Number Publication Date
CN217643790U true CN217643790U (en) 2022-10-21

Family

ID=83656269

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221255975.5U Active CN217643790U (en) 2022-05-24 2022-05-24 LED drive control circuit

Country Status (1)

Country Link
CN (1) CN217643790U (en)

Similar Documents

Publication Publication Date Title
CN102595300B (en) Apparatus for detecting faults of loudspeakers and loudspeaker system
CN104218539A (en) Charging circuit and charging method capable of preventing reverse connection of rechargeable power supply
CN210742467U (en) Device for realizing Dying Gasp function based on NP (network processor) chip
CN204465724U (en) The treatment circuit of a kind of rear end, front end and supply power coaxially circuit
CN108633142A (en) A kind of light adjusting circuit of LED light
CN102938797A (en) Current detection and control device for mobile terminal
CN105246187B (en) Emergency-lighting system
CN201893603U (en) Power supply system with high safety
CN207339642U (en) A kind of POE interchangers DC power supply
CN208337515U (en) A kind of audio signal protects circuit from compression power amplification system
CN217643790U (en) LED drive control circuit
CN204291350U (en) Loudspeaker drive signal abnormal detection circuit and speaker protection circuit
US20130259276A1 (en) Earphone jack and earphone interface circuit and electronic device
CN209880490U (en) Electromagnetic relay control circuit based on zero-crossing detection
CN102707179A (en) Fault detection device for inverter
CN107942189A (en) A kind of detection device of feeder ear wiring condition, conduction charging system and electric car
CN206004394U (en) Redundant power module circuit
CN205610225U (en) Transformer excess load automatic switching control equipment
CN211830305U (en) Input power supply misconnection prevention protection circuit
CN204118718U (en) The system that a kind of POE Ethernet provides surge energy to control
CN209784800U (en) Protective circuit giving consideration to NPN type and PNP type load output
CN212086497U (en) Electrical monitoring protection device for audio control
CN217825440U (en) Novel LED control circuit
CN113910959B (en) Charging gun protection circuit without voltage transformer
CN210468856U (en) Lithium battery protection circuit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant