A CO2 laser power supply gives energy to the laser tube. You use this device to run lasers in many jobs. These lasers help with cutting and marking. They also help with engraving and coating. Lasers can drill and weld things, too. Hospitals use lasers for skin treatments. They also use them for careful surgery. Knowing how the power supply works helps you pick the right one. Good brands like Feiju Laser make trusted laser power supplies. Other top companies also offer safe choices for laser systems.
- Common uses for CO2 laser power supplies:
- Manufacturing: cutting, marking, engraving, coating, drilling, welding
- Medical: laser resurfacing, tissue excision, non-invasive treatments
Key Takeaways
- A CO2 laser power supply gives energy to laser tubes. This lets the laser do things like cutting, engraving, and medical work. You should pick a power supply that fits your laser tube’s voltage and current. This helps the laser work safely and well. Always check safety parts like grounding and emergency stops. This keeps your work area safe. Cooling is very important. Use fans for lasers with low power. Use water cooling for lasers with high power. This stops the laser from getting too hot. Pick good brands like Feiju Laser for better results. This helps your laser system work well and last longer.
CO2 Laser Power Supply Functions
High Voltage and Current Delivery
A CO2 laser power supply sends a strong voltage and current to the laser tube. It uses special circuits to work better and save energy. You can use it with many laser tubes, like 80W, 90W, or 100W models. The power supply works with tubes from 30W up to 150W. This lets you pick what fits your needs. It has constant current protection to keep things working smoothly. Open circuit protection stops damage if the tube breaks. The power supply reacts very fast, in less than one millisecond. It is more than 90% efficient. You can use it in places from -30℃ to 65℃. This means it works well in many different conditions.
- Key features for stable delivery:
- Special circuit helps save energy
- Works with tubes from 30W to 150W
- Has constant current and open circuit protection
- Reacts quickly (≤ 1ms)
- Works in hot or cold places
Tip: Brands like Feiju Laser and Cloudray make power supplies that meet these standards. You get safe and steady operation for your laser system.
Laser Tube Activation
You need the right settings to turn on your CO2 laser tube. The power supply gives high voltage, usually between 20 kV and 50 kV. You must check if your input voltage is 110V or 220V AC. Control signals like TTL or PWM help you start and stop the laser exactly when you want. The power supply uses three steps to turn on the laser. This makes sure it starts almost every time, with a success rate over 99%. You get a reliable start each time.
- Output voltage: 20–50 kV
- Input voltage: 110V or 220V AC
- Control signals: TTL or PWM for exact control
| Function | Description |
|---|---|
| Stable Output Current | Gives a steady current with little change and high stability. |
| Ignition Facilitation | Uses three steps to turn on the laser with over 99% success. |
| Safety Measures | Has circuits and connections to keep things safe when starting. |
Output Control and Safety
You need to control the output and keep things safe with a CO2 laser power supply. Makers use strong parts and add grounding and RCD/GFCI protection. You should not change wires or software unless you are trained. Check cords, connectors, emergency stops, and door switches often for problems. If you find a problem, stop using the machine right away. Use lockout/tagout steps before fixing anything. This makes sure there is no electricity and keeps you safe.
- Safety measures include:
- Grounding and RCD/GFCI protection
- No changes without training
- Regular checks for problems
- Emergency stop and door switch checks
- Lockout/tagout steps before repairs
Note: Top brands like Feiju Laser and Cloudray follow strict rules and have certifications. You get safe and steady performance. Water-cooled power supplies help control heat. This makes your high-power laser system last longer and work better.
How the CO2 Laser Power Supply Works

Energy Conversion Process
A CO2 laser power supply changes regular electricity into high voltage and current. It takes AC power from the wall and turns it into DC power. This DC power is strong and steady for the laser tube. The process makes extra heat. The system uses water cooling or fans to get rid of the heat. This keeps everything safe. The power supply gives a steady flow of energy. This helps the laser tube work well. You can use the same power supply for tubes from 80W to 150W.
Ignition and Discharge Maintenance
When you start the laser, the power supply sends a strong pulse. This pulse lights up the gas inside the tube. After that, the power supply keeps the discharge going. This keeps the laser beam steady. Many parts help with this process. Here are the main ones:
| Mechanism | Description |
|---|---|
| Discharge Voltage Control | You change the voltage with a Variac by hand or motor. This sets the output power. |
| Gas Flow Regulation | A valve lets you change the gas flow rate. This matches the voltage for smooth control. |
| Catalyst Use | Special catalysts turn CO back into CO2. This keeps the gas mix right for laser action. |
| High Temperature Cathode | A hot cathode at 300°C helps gases recombine. |
| Negative Resistance Management | The system controls negative resistance to keep the laser stable. |
These parts work together for reliable ignition and steady operation. The power supply makes sure the laser tube starts fast. It keeps running without flicker or dropouts.
Stable Output Management
You need steady voltage and current for good laser work. The power supply uses feedback systems to monitor the output. It makes quick changes if the load changes. Inverter designs use PWM to control the current. This lets you set the power for different jobs. You get the same results even if the tube or workpiece changes.
Modern power supplies support TTTL-level control. This lets you start and stop the laser with a simple signal. You can use analog or PWM signals to set the laser power. Here are the main features:
| Feature | Description |
|---|---|
| Easy Control | You control the laser with TTL signals for quick start and stop. |
| Signal Indications | The system shows TTL, water flow, and laser output signals for easy checks. |
| Power Stability | The power supply keeps output steady for all types of cutting. |
| Control Signals | You can use 0-5V analog or PWM signals to set the laser power. |
| Compatibility | The supply works with many brands’ 80W sealed CO2 laser tubes. |
| Control Options | You can pick high or low level control using TTL signals. |
You get flexibility and safety with these features. This makes it easy to match your power supply to your laser tube and your project needs.
Main Components Overview

When you open a CO2 laser power supply, you see many parts. These parts work together to make the power supply work well. Makers design these parts to keep the unit small and light. This makes it easy for you to use.
Transformer and Inverter
The transformer and inverter help raise the voltage. They also help use energy in a smart way. Engineers make these parts smaller and faster. This helps the power supply work better. The table below shows how each part helps save space and energy:
| Component | Contribution to Efficiency and Size Reduction |
|---|---|
| Resonant Inverter | Cuts down switching losses and makes the unit efficient. |
| Cockcroft-Walton Multiplier | Keeps parasitic capacitance low for a small size and quick response. |
| Step-up Transformer | Fewer winding turns make it smaller and lower parasitic capacitance, which boosts efficiency. |
This means your power supply fits in your workspace. It also reacts fast when you use it.
Control Circuit
The control circuit lets you control the laser very well. You get steady voltage and smooth power. Here is how the control circuit helps you:
- The control circuit keeps the voltage steady and removes changes.
- It makes pulsed or steady waves by switching high-voltage signals.
- Feedback loops use sensors to watch things and change outputs as needed.
You can set the laser for different tasks. The output stays steady every time.
Safety Mechanisms
Safety features keep you and your machine safe. You see labels on the connections. This makes it easy and safe to set up. The table below shows common labels and what they do:
| Label | Description |
|---|---|
| P | Water protect, active low |
| L | Laser enable, active low |
| H | Inverted L input, active high |
| G | Ground |
| IN | PWM/analog power control |
| 5V | 5V low current source |
You match each label to the right part of your laser tube. This helps stop mistakes and keeps your system safe. Makers add these safety steps so you can use your CO2 laser power supply without worry.
Interaction with Laser Tube

Connection and Driving
You hook up the CO2 laser power supply to the laser tube. The terminals have clear labels for each job. Each wire goes to a spot for power, control, or safety. You can use this power supply with many laser tube types. Muse Titan and Pro Series tubes work with most new supplies. Reci tubes also fit well with these systems. This means you can swap tubes without changing everything.
| Laser Tube Model | Compatibility |
|---|---|
| Muse Titan | Yes |
| Pro Series | Yes |
When you match the right power supply to your tube, it works well. This setup gives you steady output and good control.
Pulse and Continuous Modes
You can pick pulse or continuous mode for your laser. Pulse mode sends quick bursts of energy. Continuous mode keeps the beam on all the time. Each mode is good for different jobs. Pulse mode helps protect soft materials and saves energy. Continuous mode is better for fast work and tough cleaning.
| Aspect | Pulse Operation | Continuous Operation |
|---|---|---|
| Heat Impact | Pulse mode keeps things cool and safe. | Continuous mode makes more heat and can hurt materials. |
| Cleaning Speed | Pulse mode cleans slowly and carefully. | Continuous mode cleans fast for big jobs. |
| Power Consumption | Pulse mode uses less energy for each job. | Continuous mode uses more power because it never stops. |
| Beam Quality | Pulse mode gives a better beam for careful cleaning. | Continuous mode is less stable and heats a bigger area. |
| Cleaning Precision | Pulse mode is very exact for tiny parts. | Continuous mode is less exact and good for rough cleaning. |
You choose the mode that fits your project best. This helps you get the right mix of speed, quality, and safety.
System Integration
You get better results when you use your CO2 laser power supply with trusted brands like Feiju Laser. You get steady power, which helps with accuracy and doing the same thing every time. The power supply handles changes in voltage and deals with heat or moisture. Cooling systems keep the power supply at a safe temperature. This helps your laser last longer and work safely.
- Steady power helps you be accurate and repeat jobs.
- The power supply deals with voltage changes and weather.
- Cooling keeps the power supply from getting too hot.
You get a system that runs well and lasts a long time. This setup helps you avoid problems and expensive fixes.
Selection Features and Considerations
Cooling and Protection
You must keep your CO2 laser power supply cool. This helps it work safely and last longer. The way you cool it depends on how strong your system is. If your unit is low-power, up to 100W, fans can cool it. Fans blow air to move heat away. For bigger or longer jobs, water cooling works better. Water cooling moves heat away faster than air. Always keep the coolant at about 25°C. You should change the temperature for summer or winter. This stops the system from getting too hot or freezing.
| Cooling Method | Power Range | Effectiveness Description |
|---|---|---|
| Air-Cooled Heat Dissipation | Low-power (≤100W) | Fans blow air, but not enough for big lasers. |
| Water-Cooled Heat Dissipation | All power ranges | Water moves heat fast, best for strong lasers. |
| Optimal Coolant Temperature | N/A | Keep coolant near 25°C, change according to the weather. |
Protection features help stop damage and make your power supply last longer. Look for open circuit protection and overcurrent protection. These features stop problems like too much electricity or broken tubes. Force-air cooling uses fans to keep things cool.
| Feature | Description |
|---|---|
| Open circuit protection | Stops damage if your laser tube breaks. |
| Overcurrent protection | Stops too much electricity from hurting your system. |
| Force-air cooling (FAC) | Fans blow air to keep the power supply cool. |
Tip: Check your cooling and protection often. This keeps your laser safe and working well.
Compatibility Factors
You need to match your power supply to your laser tube. Check the voltage, current, and wattage before you use it. If you use the wrong settings, your laser might break or not work properly. Always look at the input voltage, output voltage, and current ratings. Make sure the control interface fits your system, like a TTL-level switch control.
| Parameter | PS-100A | PS-100/150A |
|---|---|---|
| Input Voltage | AC90-250V | |
| Max. Input Power | 700W | 950W |
| Max. Input Current | 7A | 9A |
| Max. Output Voltage | 45kV | 55kV |
| Max. Output Current | 35mA | 35mA |
| Efficiency | ≥90% | |
| Control Interface | TTL level | |
| Working Environment | -10~40℃, ≤90% RH |
- Matching voltage and current keeps your system steady.
- The power must fit your laser tube, or it may not work.
- Temperature and humidity can also change how your laser works.
Choosing Reliable Brands
Pick a CO2 laser power supply from a brand you trust. Brands like Feiju Laser have good reviews and strong warranties. They offer many choices for different needs. These brands give you stable power and products that last a long time. You also get better beam quality and help if you need it.
- Look for:
- Good reviews and a strong reputation
- Warranty and help after you buy
- Many choices for different jobs
- Fair prices
- Steady performance in all weather
Note: A good brand helps you avoid repairs and lost time. You get better results and feel sure about your projects.
You need a CO2 laser power supply to give steady energy. Picking the right one helps your work stay accurate and stable. It also helps you do the same job again and again. When you choose a power supply, think about these tips:
- Make sure the voltage and current fit your job.
- Find one with settings you can change and controls that work with your system.
- Pick one that works well in different places and saves energy.
Ask trusted brands like Feiju Laser for advice. They help you learn about tube types and power levels. If you choose carefully, your laser works better and lasts longer.
FAQ
What does a CO2 laser power supply do?
You use a CO2 laser power supply to deliver high voltage and current to the laser tube. This lets you start, run, and control the laser for cutting, engraving, or marking tasks.
How do you choose the right power supply for your laser tube?
You match the voltage, current, and wattage of the power supply to your laser tube. You check compatibility with control signals like TTL or PWM. Reliable brands help you avoid problems.
Why is cooling important for a CO2 laser power supply?
Cooling keeps your power supply safe and working longer. You use fans for low-power units. Water cooling works best for high-power systems. You keep the coolant near 25°C for best results.
Can you use one power supply for different laser tubes?
You can use one power supply with different tubes if the voltage and current match. You check the specifications before connecting. Some models support a wide range of wattages.
What safety features should you look for?
You look for open circuit protection, overcurrent protection, and clear labels on connections. Emergency stops and grounding help keep you safe. Trusted brands offer certified safety features.