CN211047291U

CN211047291U - Double-color lamp indicating circuit for laser

Info

Publication number: CN211047291U
Application number: CN201922095545.6U
Authority: CN
Inventors: 王均伟; 田善文
Original assignee: Taizhou Huajun Photoelectric Technology Co ltd
Current assignee: Taizhou Huajun Photoelectric Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-07-17
Anticipated expiration: 2030-06-03

Abstract

the utility model provides a double-colored lamp indicating circuit for laser instrument, including voltage stabilizing module, control chip, double-colored L ED lamp pearl and L ED drive circuit, wherein, 5V DC voltage is inserted to voltage stabilizing module's input, and output 3.3V DC voltage, a pin of control chip is connected with the mainboard electricity of laser instrument to receiving status signal, double-colored L ED lamp pearl comprises red lamp pearl and green lamp pearl, including first input pin, second input pin and ground connection pin, wherein first input pin, second input pin electricity respectively connect in L ED drive circuit's first output and second output.

Description

Double-color lamp indicating circuit for laser

Technical Field

The utility model relates to a laser instrument, in particular to a double-colored lamp indicating circuit for laser instrument.

Background

at present, the laser devices on the market generally adopt three indicating lamps with different colors for indicating different running states of the laser devices, for example, a red lamp indicates a power supply, the red lamp indicates normal running, and a yellow lamp indicates fault alarm.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a two-color light indicating circuit for a laser, which has the characteristics of intuition and simplicity.

In order to solve the technical problem, the technical scheme of the utility model is that:

A double-color lamp indicating circuit for a laser comprises a voltage stabilizing module, a control chip, a double-color LED lamp bead and an L ED drive circuit, wherein the input end of the voltage stabilizing module is connected with a 5V direct-current voltage, the output end of the voltage stabilizing module outputs a 3.3V direct-current voltage, one pin of the control chip is electrically connected with a mainboard of the laser to receive a state signal, the L ED drive circuit comprises a first control end, a second control end, a first input end, a second input end, a first output end and a second output end, the first control end and the second control end are electrically connected to the control chip, the first input end and the second input end are electrically connected to the output end of the voltage stabilizing module, the double-color L ED lamp bead is composed of a red lamp bead and a green lamp bead and comprises a first input pin, a second input pin and a grounding pin, and the first input pin and the second input pin are electrically connected to the first output end and the second output end of the L ED drive circuit respectively.

Preferably, the control chip adopts a single chip microcomputer.

Preferably, the model of the single chip microcomputer is PIC12F 675.

Preferably, the voltage stabilizing module comprises a voltage stabilizing chip, and the input end and the output end of the voltage stabilizing chip are respectively connected in parallel with a first grounding capacitor and a second grounding capacitor; the capacity of the first grounding capacitor is larger than that of the second grounding capacitor.

Preferably, the model of the voltage stabilization chip is ASM 1117-3.3V.

preferably, the LED driving circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first NPN triode and a second NPN triode, wherein a base electrode of the first NPN triode is electrically connected to the control chip through the first resistor, an emitting electrode of the first NPN triode is electrically connected to a first input pin of the bicolor L ED lamp bead, a collecting electrode of the first NPN triode is electrically connected to an output end of the voltage stabilizing module through the second resistor, a base electrode of the second NPN triode is electrically connected to the control chip through the third resistor, the emitting electrode of the second NPN triode is electrically connected to a second input pin of the bicolor L ED lamp bead, and the collecting electrode of the second NP.

the utility model discloses technical effect mainly embodies in following aspect adopts double-colored L ED lamp pearl to replace three traditional pilot lamps of different colours for show succinct more, directly perceived.

Drawings

FIG. 1 is a circuit diagram of a two-color light indicating circuit for a laser in an embodiment;

FIG. 2 is a waveform diagram of a status signal in an embodiment;

FIG. 3 is a circuit diagram of an alarm circuit in an embodiment;

Fig. 4 is a circuit diagram of a timing trigger circuit in an embodiment.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

referring to fig. 1, this embodiment provides a two-color lamp indicating circuit for laser instrument, including voltage stabilizing module, control chip U2, two-color L ED lamp pearl and L ED drive circuit.

The voltage stabilizing module comprises a voltage stabilizing chip U1, and the model of the voltage stabilizing chip U1 is ASM 1117-3.3V. The input end and the output end of the voltage stabilizing chip U1 are respectively connected with a first grounding capacitor and a second grounding capacitor in parallel; the capacity of the first grounding capacitor is larger than that of the second grounding capacitor. The input end of the voltage stabilizing chip U1 is connected with 5V direct current voltage, and the output end outputs 3.3V direct current voltage.

The control chip U2 adopts a single chip microcomputer, the model number of the single chip microcomputer is PIC12F675, and one pin of the control chip U2 is electrically connected with a main board of the laser so as to receive a state signal.

double-colored L ED lamp pearl comprises red lamp pearl L ED1 and green lamp pearl L ED2, including first input pin, second input pin and ground pin, wherein first input pin, second input pin electricity respectively connect in L ED drive circuit's first output and second output.

Referring to fig. 2, there are 3 waveforms of the status signal, which are respectively state 1, state 2, and state 3, and represent power supply normal, operation normal, and laser failure, respectively.

the L ED driving circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first NPN triode Q1 and a second NPN triode Q2, wherein the base electrode of the first NPN triode Q1 is electrically connected to a control chip U2 through the first resistor R1, the emitter electrode is electrically connected to a first input pin of the bicolor L ED lamp bead, the collector electrode is electrically connected to the output end of a voltage stabilizing chip U1 through the second resistor R2, the base electrode of the second NPN triode Q2 is electrically connected to the control chip U2 through the third resistor R3, the emitter electrode is electrically connected to a second input pin of the bicolor L ED lamp bead, and the collector electrode is electrically connected to the output end of the voltage stabilizing chip U1 through the fourth resistor R4.

therefore, when the state signal is in the state 1, the control chip U2 outputs a high level signal Vs1 to enable the first NPN triode Q1 to be switched on and further to enable the red lamp bead L ED1 to be powered on, when the state signal is in the state 2, the control chip U2 outputs a high level signal Vs2 to enable the second NPN triode Q2 to be switched on and further to enable the green lamp bead L ED2 to be powered on, when the state signal is in the state 3, the control chip U2 simultaneously outputs high level signals Vs1 and Vs2 to enable the first NPN triode Q1 and the second NPN triode Q2 to be switched on and further to enable the red lamp bead L ED1 and the green lamp bead L ED2 to be powered on, and green light and red light are mixed and then.

referring to fig. 3, the alarm circuit further includes a timing trigger circuit, a logic circuit, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a third NPN triode Q3 and a buzzer BUZ, wherein the sixth resistor R6 and the seventh resistor R7 are respectively connected in series to 2 input pins of the bi-color L ED lamp bead, a collector of the third NPN triode Q3 is electrically connected to an output end of the voltage stabilizing chip U1 through the eighth resistor R8, an emitter of the third NPN triode Q3 is connected in series with the buzzer BUZ and then grounded, the logic circuit includes an and circuit N1 and an nand circuit N2, 2 input ends of the nand circuit N2 are respectively electrically connected to upper ends of the sixth resistor R6 and the seventh resistor R7, an output end of the nand circuit N2 is electrically connected to one input end of the and circuit N1, the other input end of the and circuit N1 is electrically connected to an output end of the timing trigger circuit, and an output end of the and N1 is electrically connected to a base of the third triode Q3.

Referring to fig. 4, when the state signal is in a state 3, the state signal is continuously at a high level, so that the fourth NPN triode Q4 is turned on, the 555 chip is powered on, at this time, a pin 2 of the 555 chip is at a high level, and is not triggered, and the output signal Vd is at a low level; after a period of time, the third capacitor C3 is fully charged, the 2-pin potential becomes low, the 555 chip is triggered, and the output signal Vd is at a high level. Meanwhile, if any one of the acquisition voltages V1 and V2 in fig. 3 is at a low level, the output signal of the nand gate circuit N2 is at a high level, so that the output end of the and gate circuit N1 outputs a high level signal, the third NPN triode Q3 is turned on, and the buzzer BUZ operates.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A double-color lamp indicating circuit for a laser is characterized by comprising a voltage stabilizing module, a control chip, a double-color L ED lamp bead and an L ED drive circuit, wherein the input end of the voltage stabilizing module is connected with 5V direct current voltage, the output end of the voltage stabilizing module outputs 3.3V direct current voltage, one pin of the control chip is electrically connected with a mainboard of the laser to receive a state signal, the L ED drive circuit comprises a first control end, a second control end, a first input end, a second input end, a first output end and a second output end, the first control end and the second control end are electrically connected to the control chip, the first input end and the second input end are electrically connected to the output end of the voltage stabilizing module, the double-color L ED lamp bead is composed of a red lamp bead and a green lamp bead and comprises a first input pin, a second input pin and a grounding pin, and the first input pin and the second input pin are electrically connected to the first output end and the second output end of the L ED drive circuit respectively.

2. The two-color lamp indicating circuit for the laser device as claimed in claim 1, wherein the control chip is a single chip microcomputer.

3. The two-color lamp indicating circuit for the laser as claimed in claim 2, wherein the model of the single chip microcomputer is PIC12F 675.

4. The two-color lamp indicating circuit for the laser device as claimed in claim 1, wherein the voltage stabilizing module comprises a voltage stabilizing chip, and the input end and the output end of the voltage stabilizing chip are respectively connected in parallel with a first grounding capacitor and a second grounding capacitor; the capacity of the first grounding capacitor is larger than that of the second grounding capacitor.

5. The bi-color light indicator circuit of claim 4, wherein the regulator chip is ASM 1117-3.3V.

6. the two-color lamp indicating circuit for the laser device according to claim 1, wherein the L ED driving circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first NPN triode and a second NPN triode, wherein a base electrode of the first NPN triode is electrically connected to the control chip through the first resistor, an emitter electrode of the first NPN triode is electrically connected to a first input pin of the two-color L ED lamp bead, a collector electrode of the first NPN triode is electrically connected to the output end of the voltage stabilizing module through the second resistor, a base electrode of the second NPN triode is electrically connected to the control chip through the third resistor, the emitter electrode of the second NPN triode is electrically connected to a second input pin of the two-color L ED lamp bead, and the collector electrode of the second NPN triode is electrically.