LED driving power supply with abnormity alarm module

Abstract

The utility model discloses an LED driving power supply with an abnormity alarm module, which comprises a driving power supply circuit, the driving power supply circuit comprises an abnormity alarm module and an LED driving circuit, and the LED driving circuit is connected with the abnormity alarm module. The abnormity alarm module comprises a charging alarm circuit, a power failure alarm circuit, a current abnormity alarm circuit and a voltage abnormity alarm circuit, the charging alarm circuit comprises D1, D2, R2, Q1, D3, R3, LED 1 and LED 2, and the power failure alarm circuit comprises R1, D1, Q2, C2, BUZ1 and R4. And the abnormity alarm module performs targeted alarm on a power-off problem, a charging problem, a current abnormity problem and a voltage abnormity problem, so that a maintainer can quickly find the problems when the LED driving power supply operates abnormally and perform maintenance in time, and the maintenance efficiency of the LED driving power supply is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED drive power supplies, in particular to an LED drive power supply with an abnormal alarm module. Background Art

[0002] LED power supply has the advantages of high brightness, low power consumption, long life, fast startup, low power, no flicker, and not easy to produce visual fatigue, making it the choice of consumers. During the manufacturing and design process, LED power supply needs to be adaptable to harsh environments, such as high altitude, high temperature, low temperature, salt spray, etc. In addition, LED power supply must have a long service life and stable performance to ensure the long-term stable operation of LED equipment. LED is an energy-saving product, so LED power supply needs to have the characteristics of high efficiency, and its efficiency is reflected in two aspects: conversion efficiency and load efficiency. Conversion efficiency refers to the ability of the power supply to convert AC power into DC power, and load efficiency refers to the ability of the power supply to output current under load. These efficiency indicators directly affect the energy consumption and use effect of the power supply.

[0003] However, the traditional LED driver has the following disadvantages:

[0004] During the operation of traditional LED driver power supplies, power outages or abnormal current may easily occur, causing the LED driver power supply to operate abnormally. Operation and maintenance personnel need to inspect and repair possible problems one by one, reducing the maintenance efficiency of the LED driver power supply. Utility Model Content

[0005] The purpose of the utility model is to provide an LED driver power supply with an abnormal alarm module to solve the problem that the traditional LED driver power supply mentioned in the above background technology is prone to power outages or current abnormalities during operation, resulting in abnormal operation of the traditional LED driver power supply. The operation and maintenance personnel need to inspect and repair possible problems one by one, which reduces the maintenance efficiency of the LED driver power supply.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an LED driving power supply with an abnormal alarm module, comprising a driving power supply circuit, the driving power supply circuit comprising an abnormal alarm module and an LED driving circuit, the LED driving circuit being connected to the abnormal alarm module, the abnormal alarm module comprising a charging alarm circuit, a power-off alarm circuit, an abnormal current alarm circuit and an abnormal voltage alarm circuit, the charging alarm circuit comprising D1, D2, R2, Q1, D3, R3, LED1 and LED2, the power-off alarm circuit comprising R1, D1, Q2, C2, BUZ1 and R4, the abnormal current alarm circuit comprising R5, R6, R7, R8, R9, Q3, Q4, Q5, D4 and C, the abnormal voltage alarm circuit comprising a relay, KA and a buzzer.

[0007] Preferably, one end of D1 is connected to one end of D2 and one end of Q1, the other end of D2 is connected to the other end of Q1, the connection between D2 and Q1 is connected to one end of R2, the surface of Q1 is connected to one end of LED1, the other end of R2 and the other end of D1 are both connected to one end of LED2, the other end of LED2 and the other end of LED1 are respectively connected to the two ends of D3, when the battery is charging, under normal circumstances, current flows through the battery and the circuit, in addition, the green LED will also light up, and will go out when fully charged because the transistor Q1 is working, and the resistor R2 is set to the bias current of the transistor to limit the maximum voltage, when the battery is fully charged, the green LED1 goes out because the current stops flowing or may flow less than 10mA, but the green LED1 may go out because the battery polarity is connected incorrectly and the output is short-circuited, when the battery polarity is wrong, the red LED2 will light up.

[0008] Preferably, one end of D1 is connected to one end of Q2 and one end of C2 respectively, the other end of Q2 is connected to one end of R1 and one end of R4 respectively, the surface of Q2 is connected to one end of BUZ1, the other end of BUZ1 and the other end of R4 are both connected to the other end of C2, the electrolytic capacitor and PNP transistor Q1 form the backbone of the circuit, initially, the input voltage is fed to the base of Q1 through the resistor R1 that limits the base current, and when the base voltage is greater than 1V, the PNP transistor will be in the cut-off state. Therefore, this can prevent the buzzer from sounding an alarm.

[0009] Preferably, one end of R9 is connected to one end of R5 and one end of Q3 respectively, the other end of Q3 is connected to one end of R6, the surface of Q3 is connected to the other end of R5 and one end of Q4 respectively, the other end of Q4 is connected to the other end of R6, the surface of Q4 is connected to the connection between Q3 and R6, the connection between Q4 and R6 is connected to one end of C, the other end of C is connected to one end of Q5, the other end of Q5 is connected to one end of D4, the other end of D4 is connected to one end of R8, the connection between Q5 and D4 is connected to one end of R7, and the surface of Q5 and the other end of R7 are both grounded.

[0010] Preferably, one end of the relay is connected to one end of KA, the other end of KA is connected to one end of a buzzer, the other end of the buzzer is connected to the other end of the relay, and when a voltage abnormality occurs, the buzzer sounds and KA is disconnected.

[0011] Preferably, the LED driving circuit includes VDD, SW, CS, TOFF and DIM, one end of the VDD is connected to one end of the DIM, the other end of the DIM is connected to one end of the TOFF, the other end of the VDD is connected to one end of the SW, the other end of the SW is connected to one end of the CS, and the other ends of the TOFF and the CS are both grounded.

[0012] Compared with the prior art, the beneficial effect of the utility model is that an abnormal alarm module is connected in series on one side of the LED driving power supply, and the abnormal alarm module respectively issues targeted alarms for power failure problems, charging problems, abnormal current problems and abnormal voltage problems, making it convenient for maintenance personnel to quickly find the problem when the LED driving power supply does not operate normally, and to perform maintenance in a timely manner, thereby improving the maintenance efficiency of the LED driving power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the driving power supply circuit of the utility model;

[0014] Figure 2 This is a circuit diagram of the charging alarm circuit of the utility model;

[0015] Figure 3 This is a circuit diagram of the power failure alarm circuit of the utility model;

[0016] Figure 4 This is a circuit diagram of the abnormal current alarm circuit of the utility model;

[0017] Figure 5 This is a circuit diagram of the abnormal voltage alarm circuit of the utility model;

[0018] Figure 6 The utility model is a circuit diagram of the LED driving circuit.

[0019] In the figure: 1. driving power supply circuit; 2. abnormal alarm module; 21. charging alarm circuit; 22. power failure alarm circuit; 23. current abnormal alarm circuit; 24. voltage abnormal alarm circuit; 3. LED driving circuit. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-6The utility model provides an LED driving power supply with an abnormal alarm module, including a driving power supply circuit 1, the driving power supply circuit 1 includes an abnormal alarm module 2 and an LED driving circuit 3, the LED driving circuit 3 is connected to the abnormal alarm module 2, the abnormal alarm module 2 includes a charging alarm circuit 21, a power-off alarm circuit 22, a current abnormal alarm circuit 23 and a voltage abnormal alarm circuit 24, the charging alarm circuit 21 includes D1, D2, R2, Q1, D3, R3, LED1 and LED2, the power-off alarm circuit 22 includes R1, D1, Q2, C2, BUZ1 and R4, the current abnormal alarm circuit 23 includes R5, R6, R7, R8, R9, Q3, Q4, Q5, D4 and C, and the voltage abnormal alarm circuit 24 includes a relay, KA and a buzzer.

[0022] One end of D1 is connected to one end of D2 and one end of Q1, the other end of D2 is connected to the other end of Q1, the connection between D2 and Q1 is connected to one end of R2, the surface of Q1 is connected to one end of LED1, the other end of R2 and the other end of D1 are both connected to one end of LED2, the other end of LED2 and the other end of LED1 are respectively connected to the two ends of D3. When the battery is charging, under normal circumstances, current flows through the battery and the circuit. In addition, the green LED will also light up and will go out when fully charged because the transistor Q1 is working, and the resistor R2 is set to the bias current of the transistor to limit the maximum voltage. When the battery is fully charged, the green LED1 goes out because the current stops flowing or may flow less than 10mA, but the green LED1 may go out because the battery polarity is connected incorrectly and the output is short-circuited. When the battery polarity is wrong, the red LED2 will light up.

[0023] One end of D1 is connected to one end of Q2 and one end of C2 respectively, the other end of Q2 is connected to one end of R1 and one end of R4 respectively, the surface of Q2 is connected to one end of BUZ1, the other end of BUZ1 and the other end of R4 are both connected to the other end of C2, the electrolytic capacitor and PNP transistor Q1 form the backbone of this circuit, initially, the input voltage is fed to the base of Q1 through the resistor R1 which limits the base current, when the base voltage is greater than 1V, the PNP transistor will be in the cut-off state. Therefore, this can prevent the buzzer from making an alarm sound.

[0024] One end of R9 is connected to one end of R5 and one end of Q3 respectively, the other end of Q3 is connected to one end of R6, the surface of Q3 is connected to the other end of R5 and one end of Q4 respectively, the other end of Q4 is connected to the other end of R6, the surface of Q4 is connected to the connection between Q3 and R6, the connection between Q4 and R6 is connected to one end of C, the other end of C is connected to one end of Q5, the other end of Q5 is connected to one end of D4, the other end of D4 is connected to one end of R8, the connection between Q5 and D4 is connected to one end of R7, and the surface of Q5 and the other end of R7 are both grounded.

[0025] One end of the relay is connected to one end of KA, the other end of KA is connected to one end of the buzzer, and the other end of the buzzer is connected to the other end of the relay. When a voltage abnormality occurs, the buzzer sounds and KA is disconnected.

[0026] The LED driving circuit 3 includes VDD, SW, CS, TOFF and DIM. One end of VDD is connected to one end of DIM, the other end of DIM is connected to one end of TOFF, the other end of VDD is connected to one end of SW, the other end of SW is connected to one end of CS, and the other ends of TOFF and CS are both grounded.

[0027] The embodiment of the present application is in use: when charging the driving power circuit 1, when the battery is being charged, under normal circumstances, there is current flowing through the battery and the circuit, in addition, the green LED will also light up, and it will go out when fully charged, because the transistor Q1 is working, and the resistor R2 is set to the bias current of the transistor, limiting the maximum voltage, when the battery is fully charged, the green LED1 goes out because the current stops flowing or may flow less than 10mA, but the green LED1 may go out because the battery polarity is wrong and the output is short-circuited. When the battery polarity is wrong, the red LED2 will light up. When a power outage occurs, the electrolytic capacitor and the PNP transistor Q1 form the backbone of the circuit. Initially, the input voltage is fed to the base of Q1 through the resistor R1 that limits the base current. When the base voltage is greater than 1V, the PNP transistor will be in the cut-off state. Therefore, this can prevent the buzzer from sounding an alarm. When a voltage abnormality occurs, the buzzer sounds and KA is disconnected.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An LED driving power supply with an abnormal alarm module, comprising a driving power supply circuit (1), characterized in that: The driving power supply circuit (1) comprises an abnormal alarm module (2) and an LED driving circuit (3); the LED driving circuit (3) is connected to the abnormal alarm module (2); the abnormal alarm module (2) comprises a charging alarm circuit (21), a power failure alarm circuit (22), a current abnormal alarm circuit (23) and a voltage abnormal alarm circuit (24); the charging alarm circuit (21) comprises D1, D2, R2, Q1, D3, R3, LED1 and LED2; the power failure alarm circuit (22) comprises R1, D1, Q2, C2, BUZ1 and R4; the current abnormal alarm circuit (23) comprises R5, R6, R7, R8, R9, Q3, Q4, Q5, D4 and C; and the voltage abnormal alarm circuit (24) comprises a relay, KA and a buzzer.

2. The LED driving power supply with an abnormal alarm module according to claim 1, characterized in that: One end of D1 is connected to one end of D2 and one end of Q1, the other end of D2 is connected to the other end of Q1, the connection between D2 and Q1 is connected to one end of R2, the surface of Q1 is connected to one end of LED1, the other end of R2 and the other end of D1 are both connected to one end of LED2, and the other end of LED2 and the other end of LED1 are respectively connected to two ends of D3.

3. The LED driving power supply with an abnormal alarm module according to claim 1, characterized in that: One end of D1 is connected to one end of Q2 and one end of C2 respectively, the other end of Q2 is connected to one end of R1 and one end of R4 respectively, the surface of Q2 is connected to one end of BUZ1, and the other end of BUZ1 and the other end of R4 are both connected to the other end of C2.

4. The LED driving power supply with an abnormal alarm module according to claim 1, characterized in that: One end of R9 is connected to one end of R5 and one end of Q3 respectively, the other end of Q3 is connected to one end of R6, the surface of Q3 is connected to the other end of R5 and one end of Q4 respectively, the other end of Q4 is connected to the other end of R6, the surface of Q4 is connected to the connection between Q3 and R6, the connection between Q4 and R6 is connected to one end of C, the other end of C is connected to one end of Q5, the other end of Q5 is connected to one end of D4, the other end of D4 is connected to one end of R8, the connection between Q5 and D4 is connected to one end of R7, and the surface of Q5 and the other end of R7 are both grounded.

5. The LED driving power supply with an abnormal alarm module according to claim 1, characterized in that: One end of the relay is connected to one end of the KA, the other end of the KA is connected to one end of the buzzer, and the other end of the buzzer is connected to the other end of the relay.

6. The LED driving power supply with an abnormal alarm module according to claim 1, characterized in that: The LED driving circuit (3) comprises VDD, SW, CS, TOFF and DIM, one end of the VDD is connected to one end of the DIM, the other end of the DIM is connected to one end of the TOFF, the other end of the VDD is connected to one end of the SW, the other end of the SW is connected to one end of the CS, and the other ends of the TOFF and CS are both grounded.

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