CN210298150U

CN210298150U - Multilayer signal lamp controlled by constant current mode switch

Info

Publication number: CN210298150U
Application number: CN201920970131.0U
Authority: CN
Inventors: 金永镐; 熊丽; 马意涵
Original assignee: Yanbian University
Current assignee: Yanbian University
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-10
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a multilayer formula signal lamp of constant current mode on-off control, including input section, the wide voltage regulator of low-power consumption, lift formula galvanostat, quick current limiter, controller, switch group and LED banks, a serial communication port, the input of the wide voltage regulator of low-power consumption is connected to input section, and the input of lift formula galvanostat is connected to the output of the wide voltage regulator of low-power consumption, and the input of quick current limiter is connected to the output of lift formula galvanostat, and the input of quick current limiter's output linked switch group, LED banks are connected to the output of switch group, and the control end of switch group is connection director still. The utility model discloses utilize a constant current source with a plurality of LED banks of electronic switch short circuit mode drive, obtained fine driving characteristic and reliable stability in wide voltage range, simplify the circuit greatly, reduce the volume, improve the cost performance ratio.

Description

Multilayer signal lamp controlled by constant current mode switch

Technical Field

The utility model relates to the field of lighting technology, specifically a multilayer formula signal lamp of constant current mode on-off control.

Background

The multilayer signal lamp is widely used in various industrial, agricultural and traffic environments, and various information of equipment is sent by using different colors, so that technicians can timely handle faults and accidents are prevented.

The existing multilayer signal lamp generally has five colors of red, green, yellow, blue, white and the like, and at least one signal lamp and at most three signal lamps are lighted during working. The power of each layer of lamp group is divided into small power and large power. When the low-power signal lamp drives the LED lamp group, a voltage source is adopted to obtain an approximate constant current after the current is limited by the current-limiting resistor for constant current driving, but the working voltages of the LEDs with different colors are different, and the working voltage of the LED is reduced due to the fact that the LED heats during working, so that in order to obtain a stable constant current characteristic, the current-limiting resistor uses a large resistance value, power loss on the current-limiting resistor is increased, and electric energy is wasted.

When the high-power signal lamp drives the LED lamp group, three independent constant current sources are adopted to drive the LEDs for constant current driving, the mode has good constant current characteristic and low power loss, but the structure is complex, the stability is poor, the size is large, the miniaturization of products is not suitable, the existing products are divided into various types such as 12V, 24V, 48V, 60V and the like, the maintenance and the management of the products are inconvenient, and the overstock of the stock is caused, so that the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a constant current mode on-off control's multilayer formula signal lamp to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a multilayer formula signal lamp of constant current mode on-off control, includes input section, the wide voltage regulator of low-power consumption, step-up and step-down formula galvanostat, quick current limiter, controller, switch group and LED banks, its characterized in that, the input of the wide voltage regulator of low-power consumption is connected to input section, and the input of the step-up and step-down formula galvanostat is connected to the output of the wide voltage regulator of low-power consumption, and the input of quick current limiter is connected to the output of step-up and step-down formula galvanostat, and the input of switch group is connected to the output of quick current limiter, and LED banks is connected to the output of switch.

As a further technical solution of the present invention: the input part comprises a power interface J2, a diode D1 and a capacitor C2, wherein a pin 1 of the power interface J2 is connected with an anode of a diode D1, a cathode of a diode D1 is connected with a capacitor C2, and the other end of the capacitor C2 is connected with a pin 2 of the power interface J2 and the ground.

As a further technical solution of the present invention: the low-power-consumption wide-voltage regulator comprises a triode Q3, a resistor R18, a resistor R19, a diode D9, a triode Q9 and a resistor R28, an emitter of the triode Q3 is connected with the resistor R18 and the cathode of the diode D1, the base of a triode Q3 is connected with the collector of the triode Q9, the base of a triode Q9 is connected with the other end of the resistor R18 and the cathode of the diode D9, the emitter of the triode Q9 is connected with the resistor R19 and the resistor R20, the other end of the resistor R19 is connected with the collector of the triode Q3 and a capacitor C4, and the other end of the capacitor C4 is connected with the anode of the diode D8, the resistor R20 and the ground.

As a further technical solution of the present invention: the buck-boost type constant current device comprises a chip J1, an inductor L1 and a MOS tube Q2, wherein a pin 1 of a chip J1 is connected with a resistor R6, the other end of the short-circuit R6 is connected with a pin 2 of a chip J1, a resistor R21 and the cathode of a diode D10, a pin 7 of a chip J1 is connected with the collector of a triode Q3, a pin 8 of a chip J1 is connected with a resistor R3 and a resistor R21, the other end of the resistor R3 is connected with a capacitor C6 and a pin 4 of a chip J1, the other end of the resistor R21 is connected with the cathode of a diode D10, the anode of a diode D10 is connected with a resistor R7, the other end of the resistor R7 is connected with a resistor R5 and ground, the other end of the resistor R5 is connected with a resistor R2 and the source of the MOS tube Q2, the other end of the resistor R2 is connected with a capacitor C2 and the pin 3 of the diode J2, a pin 6 of the other end of the MOS tube Q2 is connected with the gate of the inductor L2 and the drain of, the cathode of the diode D2 is connected with a capacitor C3, the other end of the capacitor C3 is connected with the other end of an inductor L2, the other end of a resistor R5, the other end of a capacitor C5, the other end of a capacitor C6, a pin 5 of a chip J1 and the ground, and the model of the chip J1 is UC 3800.

As a further technical solution of the present invention: the fast current limiter comprises a resistor R1, a triode Q3, a diode D3 and a MOS tube Q1, one end of the resistor R1 is connected with an emitter of the MOS tube Q3 and a cathode of the diode D2, the other end of the resistor R1 is connected with a base of the MOS tube Q3, a source of the MOS tube Q1 and an anode of a cathode diode D3 of the diode D3 are connected with a collector of the MOS tube Q3 and gates of the resistor R4 and the MOS tube Q1, and the other end of the resistor R4 is grounded.

As a further technical solution of the present invention: the switch group comprises diodes D4-D8 and MOS tubes Q4-Q8, the LED lamp group comprises a first lamp group, a second lamp group, a third lamp group, a fourth lamp group and a fifth lamp group, the cathode of the diode D4 is connected with the source of the MOS tube Q4, the drain of the first lamp group and the drain of the MOS tube Q1, the anode of the diode D4 is connected with the gate of the MOS tube Q4, the cathode of the diode D5 is connected with the source of the MOS tube Q5, the other end of the first lamp group, the drain of the second lamp group and the MOS tube Q4, the anode of the diode D5 is connected with the gate of the MOS tube Q5, the cathode of the diode D6 is connected with the source of the MOS tube Q6, the other end of the second lamp group, the drain of the third lamp group and the MOS tube Q5, the anode of the diode D6 is connected with the gate of the MOS tube Q6, the cathode of the diode D7 is connected with the source of the MOS tube Q7, the other end of the third lamp group, the drain of the MOS tube Q6356 and the drain of the MOS tube Q7, the cathode of the diode D8 is connected to the source of the MOS transistor Q8, the other end of the fourth lamp group, the fifth lamp group and the drain of the MOS transistor Q7, the anode of the diode D8 is connected to the gate of the MOS transistor Q8, and the drain of the MOS transistor Q8 is connected to the other end of the fifth lamp group and the anode of the diode D10.

As a further technical solution of the present invention: the controller comprises a chip J3, a pin 16 of the chip J3 is connected with a grid of a MOS tube Q8 and a resistor R8, a pin 17 of the chip J3 is connected with a grid of a MOS tube Q7 and a resistor R9, a pin 18 of the chip J3 is connected with a grid of a MOS tube Q6 and a resistor R10, a pin 19 of the chip J3 is connected with a grid of a MOS tube Q5 and a resistor R11, a pin 20 of the chip J3 is connected with a grid of a MOS tube Q4 and a resistor R12, the other end of the resistor R8 is connected with the other end of the resistor R9, the other end of the resistor R10, the other end of the resistor R11, the other end of the resistor R12, a pin 12 of the chip J3 and the ground, and the model of the chip J686.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses utilize a constant current source with a plurality of LED banks of electronic switch short circuit mode drive, obtained fine driving characteristic and reliable stability in wide voltage range, simplify the circuit greatly, reduce the volume, improve the cost performance ratio, be favorable to the miniaturization of product. The design can replace various products such as 12V, 24V, 48V, 60V and the like, so that the product maintenance and management are convenient, the stock backlog is reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a multilayer signal lamp controlled by a constant current mode switch includes an input portion, a low power consumption wide voltage regulator, a buck-boost type galvanostat, a fast current limiter, a controller, a switch group, and an LED lamp group:

the input part consists of a diode D1 and a capacitor C2, the capacitor C2 is charged by input voltage through D1 to establish working voltage, and the control circuit is prevented from being damaged when the polarity of the input voltage is wrong;

the low-power-consumption wide-voltage stabilizer consists of resistors R18, R19, R20, a capacitor C4, a triode Q3, a Q9 and a voltage stabilizing tube D9, wherein when the input voltage is 10V-80V, the voltage of about 9V is output, the input voltage establishes a reference voltage of about 5.1V at two ends of the voltage stabilizing tube D9 through the R18 and is supplied to a base electrode of Q9, when the output voltage is increased, the voltage of the R19 and the R20 is increased, an emitter of the Q9 is raised, and the collector current of the Q9 is reduced, so that the output current of the triode Q3 is reduced and the output voltage is reduced;

the buck-boost type galvanostat is composed of resistors R2, R3, R5, R6, R7 and R21, capacitors C1, C3, C5 and C6, inductors L1 and L2, a diode D2, a field effect transistor Q2, a voltage regulator D10 and an integrated circuit UC3800, when the voltage of a CS terminal of a 3 pin is smaller than 1V, the output of the 6 pin is high-level Q2 and is conducted, the currents of the inductors L1 and L2 are gradually increased to store energy, the currents of the L1 and L2 pass through the R5, when the voltage of the R5 is larger than 1V, the Q2 is cut off, the energy stored in the L1 charges the capacitors C1 and C3, meanwhile, the D2 is conducted, and the energy stored in the L2 is supplied to the C3 for charging. When the working current of the lamp group passes through R7, voltage drop is generated, the voltage drop generated at two ends of R7 is raised by 2V through a voltage regulator tube D10 and then is supplied to a pin 2, when the current exceeds a set value, the voltage of the pin 2 exceeds 2.5V of the in-phase end of an internal operational amplifier, UC3800 is closed in advance, so that the output of the pin 6 is low level, Q2 is closed, and the output current is reduced; r3 and C6 are used for setting working frequency;

the fast current limiter consists of a resistor R1, a triode Q3, a voltage regulator tube D3 and a field effect tube Q1, when the output current is smaller than a set value, the voltage drop of the R1 is not enough to conduct the Q3, so that the voltage of approximately 10V is generated at two ends of the D3 through the R4, and the Q1 is conducted in a saturated mode; when the output current is larger than a set value, the voltage drop of R1 enables Q3 to be conducted, the voltage at two ends of D3 starts to be limited, Q1 is enabled to exit from saturation and enter a linear regulation state, and therefore pulse current is absorbed;

the controller consists of resistors R8, R9, R10, R11, R12 and an integrated circuit UDN2983, wherein R8, R9, R10, R11 and R12 are pull-down resistors at the output end of the UDN2983, when a voltage of 2V-15V is input by CHR and OUT2, OUT3, OUT4 and OUT5 have no input, the output of OUT1 is approximately U0 at high level, and the output ends of OUT2, OUT3, OUT4 and OUT5 are pulled to low level by the pull-down resistors;

the switch group consists of voltage-stabilizing tubes D4, D5, D6, D7, D8, field-effect tubes Q4, Q5, Q6, Q7 and Q8, the voltage-stabilizing tubes D4, D5, D6, D7 and D8 protect the input ends of the field-effect tubes Q4, Q5, Q6, Q7 and Q8, when one lamp group is lighted, the CHR is assumed to have input voltage, so that the OUT 8 output of the UDN2983 is high level, the OUT 8, OUT 8 and OUT 8 are low level, so that the voltage at two ends of the D8 is approximately 0V, the Q8 does not conduct the LED 8 to be bright, the voltage at two ends of the D8, D8 and D8 is approximately 10V, the Q8 and the LED 8 are all saturated and the LED 8, the LED 8 is not bright; when two lamp groups are lit, assuming that CHG and CHB have input voltages, so the OUT2 and OUT4 outputs of UDN2983 are high, and OUT1, OUT3 and OUT5 are low, so the voltage across D5 is approximately 0V, Q5 does not conduct LED2 and lights, Q5 has a voltage drop across LED2, and Q6 conducts lamp group 3 and does not light, and D7 forward bias provides a voltage of about 0.6V, so Q7 does not conduct lamp group 4 and Q8 conducts lamp group 5 and does not light.

Embodiment 2, on the basis of embodiment 1, the LED lamp set is composed of an LED1, an LED2, an LED3, an LED4, and an LED5, is composed of a plurality of low-power or high-power LEDs, and can also be designed according to specific use requirements.

In this way, neither the primary ear nor the secondary ear requires additional storage space to store the received audio data, nor additional communication, which increases the overhead of software and hardware.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a multilayer formula signal lamp of constant current mode on-off control, includes input section, the wide voltage regulator of low-power consumption, step-up and step-down formula galvanostat, quick current limiter, controller, switch group and LED banks, its characterized in that, the input of the wide voltage regulator of low-power consumption is connected to input section, and the input of the step-up and step-down formula galvanostat is connected to the output of the wide voltage regulator of low-power consumption, and the input of quick current limiter is connected to the output of step-up and step-down formula galvanostat, and the input of switch group is connected to the output of quick current limiter, and LED banks is connected to the output of switch.

2. The multi-layer signal lamp controlled by the constant current mode switch according to claim 1, wherein the input part comprises a power interface J2, a diode D1 and a capacitor C2, a pin 1 of the power interface J2 is connected with an anode of the diode D1, a cathode of the diode D1 is connected with the capacitor C2, and the other end of the capacitor C2 is connected with a pin 2 of the power interface J2 and the ground.

3. The multi-layer signal lamp controlled by a constant current mode switch according to claim 2, wherein the low-power-consumption wide-voltage regulator comprises a transistor Q3, a resistor R18, a resistor R19, a diode D9, a transistor Q9 and a resistor R28, a transmitter of a transistor Q3 is connected with the resistor R18 and a cathode of the diode D1, a base of a transistor Q3 is connected with a collector of a transistor Q9, a base of a transistor Q9 is connected with the other end of the resistor R18 and a cathode of the diode D9, a transmitter of a transistor Q9 is connected with the resistor R19 and a resistor R20, the other end of the resistor R19 is connected with a collector of a transistor Q3 and a capacitor C4, and the other end of a capacitor C4 is connected with an anode of a diode D8, a resistor R20 and ground.

4. The multi-layer signal lamp controlled by the constant current mode switch according to claim 3, wherein the buck-boost type galvanostat includes a chip J, an inductor L and a MOS transistor Q, a pin 1 of the chip J is connected with a resistor R, the other end of the short leg R is connected with a pin 2 of the chip J, a resistor R and a cathode of a diode D, a pin 7 of the chip J is connected with a collector of the triode Q, a pin 8 of the chip J is connected with the resistor R and the resistor R, the other end of the resistor R is connected with a capacitor C and a pin 4 of the chip J, the other end of the resistor R is connected with a cathode of the diode D, an anode of the diode D is connected with the resistor R, the other end of the resistor R is connected with the resistor R and the ground, the other end of the resistor R is connected with a source of the MOS transistor Q, the other end of the resistor R is connected with the capacitor C and a pin 3 of the chip J, a pin 6 of the chip, the other end of the capacitor C1 is connected with an inductor L2 and the anode of a diode D2, the cathode of the diode D2 is connected with a capacitor C3, the other end of the capacitor C3 is connected with the other end of an inductor L2, the other end of a resistor R5, the other end of the capacitor C5, the other end of a capacitor C6, a pin 5 of a chip J1 and the ground, and the model of the chip J1 is UC 3800.

5. The multi-layer signal lamp controlled by the constant current mode switch according to claim 4, wherein the fast current limiter comprises a resistor R1, a triode Q3, a diode D3 and a MOS transistor Q1, one end of the resistor R1 is connected with the emitter of the MOS transistor Q3 and the cathode of the diode D2, the other end of the resistor R1 is connected with the base of the MOS transistor Q3, the source of the MOS transistor Q1 and the anode of a cathode diode D3 of the diode D3 are connected with the collector of the MOS transistor Q3, the resistor R4 and the gate of the MOS transistor Q1, and the other end of the resistor R4 is grounded.

6. The multi-layer signal lamp controlled by a constant current mode switch according to claim 5, wherein the switch group comprises diodes D4-D8 and MOS transistors Q4-Q8, the LED lamp group comprises a first lamp group, a second lamp group, a third lamp group, a fourth lamp group and a fifth lamp group, the cathode of the diode D4 is connected with the source of the MOS transistor Q4, the drain of the first lamp group and the MOS transistor Q1, the anode of the diode D4 is connected with the gate of the MOS transistor Q4, the cathode of the diode D5 is connected with the source of the MOS transistor Q5, the other end of the first lamp group, the drain of the second lamp group and the MOS transistor Q4, the anode of the diode D5 is connected with the gate of the MOS transistor Q5, the cathode of the diode D6 is connected with the source of the MOS transistor Q6, the other end of the second lamp group, the drain of the third lamp group and the MOS transistor Q5, the gate of the anode of the diode D6 is connected with the source of the MOS transistor Q6, the cathode of the diode D7 is connected with the source of the MOS transistor Q7 and, The fourth lamp group and the drain electrode of the MOS tube Q6, the anode of the diode D7 is connected with the grid electrode of the MOS tube Q7, the cathode of the diode D8 is connected with the source electrode of the MOS tube Q8, the other end of the fourth lamp group, the fifth lamp group and the drain electrode of the MOS tube Q7, the anode of the diode D8 is connected with the grid electrode of the MOS tube Q8, and the drain electrode of the MOS tube Q8 is connected with the other end of the fifth lamp group and the anode of the diode D10.

7. The multilayer signal lamp controlled by the constant current mode switch according to claim 6, wherein the controller comprises a chip J3, a pin 16 of the chip J3 is connected with a gate of a MOS transistor Q8 and a resistor R8, a pin 17 of the chip J3 is connected with a gate of a MOS transistor Q7 and a resistor R9, a pin 18 of the chip J3 is connected with a gate of a MOS transistor Q6 and a resistor R10, a pin 19 of the chip J3 is connected with a gate of a MOS transistor Q5 and a resistor R11, a pin 20 of the chip J3 is connected with a gate of a MOS transistor Q4 and a resistor R12, the other end of the resistor R8 is connected with the other end of a resistor R9, the other end of a resistor R10, the other end of a resistor R11, the other end of a resistor R12, a pin 12 of the chip J3 and a ground, and the model number of the chip J3 is.