Solar inverter PCB manufacturing
♦Number of SMT cable: 8 high-speed SMT patch supporting production lines
♦SMT daily capacity: more than 30 million points or more
♦Detective equipment: X-ray tester, the first tester, AOI automatic optical tester, ICT tester, BGA return restaurant
♦Paste speed: CHIP component sticker installation speed (best condition) 0.036S/piece
♦The minimum packaging: 0201, the accuracy can reach+0.04mm
♦Minimum device accuracy: Paste PLCC, QFP, BGA, CSP and other devices, the spacing of the foot can reach+0.04mm
♦IC-type patch accuracy: It has a high level of sticker ultra-PCB board, flexible PCB board, and gold finger. It can be installed/inserted/mixed TFT display drive board, mobile phone motherboard, battery protection circuit and other difficult products.
Product Description
Laser control system PCB is a kind of core control circuit board specialized in laser equipment, widely used in laser marking, laser engraving, laser cutting, laser welding and other equipment. It integrates laser control, power management, motion control, signal processing and communication interface and other functional modules, and is a bridge between the software and hardware.
Main functions:
1、Laser control: adjust the laser switch, power, pulse width, frequency and other parameters to realize precise processing.
2、Vibrating mirror/platform control: drive vibrating mirror or motion platform to realize accurate positioning and path control of beam in space.
3、Data communication: Communicate with the upper computer or control software through USB, RS232, Ethernet and other interfaces to receive marking/cutting data.
4、Status monitoring and feedback: monitor voltage, current, temperature and other status parameters to realize system protection and stable operation.
5, human-computer interaction support: part of the PCB integrated LCD display, key input, etc., to facilitate equipment operation and maintenance.
Product parameters
parameter | Technical indicators |
| Galvanometer control interface and functions | |
| Galvanometer interface | DB9_(Digital galvanometer xY2-100 protocol) |
| Galvanometer scanning graphics | Straight line, rectangle, circle, etc. |
| Laser control interface and functions | |
| Laser interface | DB25 |
| Laser control function | Power, frequency, pulse width |
| Host computer interface and parameters | |
| Communication interface | RS232-1 |
| Control parameters | Laser power (%), laser frequency (kHz), pulse width (ns), scan width (mm), scan length (mm), scan speed (mm/s), etc. |
| Other interfaces | |
| Serial Port | RS232-2 Reserved |
| TTL reserved, | |
| Universal I0 (DB25) | Light button input |
| 5v power output | |
| IO output-1_(optical signal output) | |
| IO output – 2 | |
| External alarm input-1 (low level alarm) | |
| External alarm input-2 (low level alarm) | |
| 0~10V analog voltage input | |
| Electrical Characteristics | |
| Supply voltage | 12~24V |
Laser control system pcb application
1、Laser laser engraving
Laser control system PCB plays a core control role in laser engraving. It is responsible for receiving commands, controlling the switch, power and frequency of the laser, and cooperating with the motion system to realize the accurate engraving of patterns or words. At the same time, it can also monitor the system status to ensure the stable operation of the equipment. Simply put, is the command laser “how to hit, hit how deep, hit where” the key components.
2, laser marking
Laser control system PCB plays the role of control and command in laser marking. It is responsible for receiving external commands, controlling the laser start and stop, energy and frequency, and coordinating the movement of the vibration mirror or motion platform, to achieve accurate and clear marking effect, is an important core component of the laser marking equipment.
3、Digital galvanometer control
Laser control system PCB plays a key role in digital galvanometer control. It is responsible for receiving marking instructions, generating precise control signals, driving the X, Y axis galvanometer motor, realizing the rapid and accurate positioning and movement of the laser beam, so as to complete high-precision pattern or text marking.
4、Laser cutting
Laser control system PCB plays a core control role in laser cutting. It is responsible for controlling the power, frequency and cutting path of the laser, and at the same time coordinating the motion system to realize the precise movement and cutting of the laser beam. It ensures that the cutting process is efficient, stable and precise, and is an important part of the laser cutting equipment.
The working principle of laser control equipment pcb
The core working principle of laser control equipment PCB is to realize the driving, modulation, protection and signal feedback of laser through precision circuit, which can be divided into the following modules:
1. Power drive module
The use of high-current MOSFET/IGBT (such as 100V/20A specifications) or special laser driver IC (such as MAX1968), through the PWM or constant-current circuit to accurately control the laser tube current, current stability needs to be ± 1% or less, and integrated overcurrent protection (such as fast fuses).
2. Signal modulation module
High-frequency circuit (> 100MHz) to achieve TTL / analog modulation, such as the use of high-speed op-amps (AD8065) will be converted to the input signal laser drive voltage
Digital control using FPGA to generate PWM waveforms (resolution ≤ 1ns)
3. Temperature control module
Thermoelectric cooler (TEC) drive circuit with PID algorithms (such as ADN8834 chip), the laser temperature fluctuation control in ± 0.1 ℃
NTC thermistor real-time temperature monitoring (accuracy ± 0.5 ℃)
4. Protection circuit
Transient suppression: TVS tube (such as 5KP series) to cope with the reverse peak voltage
Optical power feedback: built-in photodiode monitors the output through the transimpedance amplifier, triggering closed-loop regulation
5.Communication interface
Opto-isolated RS485/CAN bus to transmit control commands.
High-speed fiber optic interface (e.g. SFP+) is used to synchronize the clock signal during data transmission.
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