MYJG80W - Power Supply Vevor - Free user manual and instructions
Find the device manual for free MYJG80W Vevor in PDF.
| Product Type | Power Supply for CO2 Laser |
| Brand | Vevor |
| Model | MYJG80W |
| Input Voltage | AC 100-240 V, 50/60 Hz |
| Maximum Output Current | 25 mA |
| Efficiency | 91% |
| Response Speed | ≤ 1 ms |
| Overcurrent Protection | 130% of maximum current |
| Open Circuit Protection | Yes (short duration) |
| Cooling | Built-in Fan |
| Operating Temperature | -30 °C to +65 °C |
| Relative Humidity | 20 to 85% RH (non-condensing) |
| Insulation Resistance | ≥ 50 MΩ (DC 500 V) |
| MTBF | ≥ 30,000 hours |
| Control Signal | TTL (high/low) or PWM, 0-5 V analog |
| Feedback Interface | Yes, for closed-loop control |
| Maintenance and Cleaning | Disconnect before cleaning; use a dry cloth; do not expose to water |
| Safety | Grounding mandatory; avoid electric shocks; do not open the casing when powered |
| Spare Parts and Repairability | Contact Vevor technical support for parts and repairs |
| General Information | High-performance power supply for CO2 laser tubes; lightweight and compact |
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USER MANUAL MYJG80W Vevor
Technical Support and E-Warranty Certificate www.vevor.com/support
LASER POWER SUPPLY USER MANUAL
MODEL: MYJG40W, MYJG60W, MYJG80W, MYJG100W, MYJG150W
We continue to be committed to providing you with tools at competitive prices. "Save Half", "Half Price", or any other similar expressions used by us only represent an estimate of savings you might benefit from buying certain tools with us compared to the major top brands and do not necessarily mean to cover all categories of tools offered by us. You are kindly reminded to verify carefully when placing an order with us if you are actually saving half in comparison with the top major brands.
VEVOR®
TOUGH TOOLS, HALF PRICE
LASER POWER SUPPLY

MYJG40W

(The picture is for reference only, please refer to the actual object)
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
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This is the original instruction. Please read all manual instructions carefully before operating. VEVOR reserves a clear interpretation of the user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won't inform you if there are any technology or software updates on our product.
Key features:
The product is a successful high-efficiency, high-frequency, high-speed CO2 laser supported power supply, small size, light weight, easy to operate with good matching performance for lasers. It can be directly connected with the laser, saving the bulky and severe heating of resistance. The power supply can make the CO2 laser lighting easy, taking advantage of the full performance of CO2 laser, improving conversion efficiency, and extending the life of the laser.
Key Technical Parameters:
- Input voltage: AC 100-240V
- Response speed: ≤ 1mS.
- TTL level switch control: effective level can be high or low select
- Protection switch: can be used for the detection of water, protection of lasers, or protection when opening the housing, etc.
- Laser power regulation: (1) The output current of the laser power is regulated by the power meter. (2) Controlled by PWM (TTL level).
- Feedback Interface: The power supply itself can have a feedback interface and can be used for closed-loop control to verify the actual working current of the laser.
- Environment of use: Temperature (-10 to 40 degrees C), humidity: 85%.
Instructions For Use:
- Connection of the Laser Tube: The high-voltage (HV-plus) of the power supply must be connected to the anode (full reflector) of the laser tube. The current circuit of the laser power supply is connected to the cathode (laser output) of the CO2 laser tube via a current meter directly)
- Connection of the Control Signal: In Figure 1 (or Figure 2), the signal line is reliably connected to the control end of the laser power supply.
- Control Signal Input: As shown in Figure 3, the DAC signal or T signal output from the external computer are connected to the laser power supply as required, and to control laser tube output power.
- Voltage Selection: The laser power supply requires inputs of AC 100-240V, 50/60Hz.
- Additional Features: The laser power supply has a set of protective switches for protection for water flow, when the housing is opened.
Important Notes:
- The laser tube must be cooled with water when working!
- High-voltage output must not be open! (The high-voltage output positive and negative ends must be properly connected to the laser positive and negative ends).
- The internal power supply has been designed to discharge any residual charge at shutdown, but can generally take up to two seconds. But for safety reasons you should still be careful of electric shocks! Insulation safety requirements of the suspended 40KV high voltage must be guaranteed at both ends of the high-voltage output).
- The laser power supply must use a three-hole socket with a ground end. The case must be strictly grounded to avoid electric shock.
| The current circuit | HV+(High Voltage) |
Wiring Diagrams for Laser Power Supplies and Lasers:
![graph TD A["Cooling water in"] --> B["CO2 Laser"] B --> C["Laser output"] B --> D["Ammeter"] D --> E["Cathode"] E --> F["Anode"] F --> G["High voltage."] G --> H["Laser power"] H --> I["Machine Ground"] H --> J["1 2 3 4 5 6"] H --> K["The control end"] style A fill:#f9f,stroke:#333 style B fill:#ccf…](/content/2026/04/736060/images/0969093212ce3ccfe905e22af410e45945a8b2369938fe3f1ad231aecfcbd67d.jpg)
![graph TD H["Input H"] --> TTL_H["Inverter"] L["Input L"] --> TTL_L["Inverter"] P["Input P"] --> InterfaceProtection["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["5V"] --> 5K["5K Resistor"] TTL_H --> signal_ground["signal ground"] TTL_L --> sig…](/content/2026/04/736060/images/a422fa69e68e4ee184e53982311dc153fe1a571115028fcec2370bd191c9e526.jpg)
Control terminal meaning and function:
| TTL-H Input | TTL-L Input | Control Input (DAC) | Laser output |
| Open | Low (<0.3V) | 0-5V | Pmin - Pmax |
| High (>3V) | 0-5V | 0 | |
| Low (<0.3V) | Open | 0-5V | 0 |
| High (>3V) | 0-5V | Pmin - Pmax | |
| Protection Interface | 0-5V | 0 | |
Low-level TTL Signal Connection Diagram![graph TD A["Cooling water in"] --> B["CO2 Laser"] B --> C["Laser output"] D["Machine Ground"] --> E["High voltage."] E --> F["Laser power"] G["Anode"] --> H["Ammeter"] I["Cathode"] --> H J["The current circuit"] --> H K["The control end"] --> H](/content/2026/04/736060/images/b75222a6769767b08c02e2498ba9d7b73a797afa0f98431ca6bbaf2a940fb2bb.jpg)

![graph TD A["Signal Ground"] --> B["TTL-L (Laser Fire)"] A --> C["Manual On/Off"] B --> D["Power Supply H L WP G IN 5V"] C --> E["Power Supply Manual On/Off"] D --> F["Output Signal"] E --> G["Output Signal"] F --> H["Energy Control Signal"] G --> H style A fill:#f9f,stroke:#333 style H fill:#ccf,str…](/content/2026/04/736060/images/7c5d5ba1ea2344589c37fd4c5d600ea2c5d16e2151dbd1838182c1848d8db9d2.jpg)
Note: There are two ways to control energy signals:
- PWM Pulse Generator: (frequency laser) intensity from 20kHz to 50kHz, 5V air-to-air ratio.
- 0-5V Analog
High-level TTL Signal Connection Diagram:![graph TD A["Cooling water in"] --> B["CO2 Laser"] B --> C["Laser output"] B --> D["Ammeter"] D --> E["Anode"] E --> F["High voltage."] F --> G["Laser power"] G --> H["Machine Ground"] G --> I["1 2 3 4 5 6"] G --> J["The control end"] style A fill:#f9f,stroke:#333 style B fill:#ccf,stroke:#333 style…](/content/2026/04/736060/images/59d0790a17f1f04f75af4df1e1e7c38b89d5366a6bc281cb5432d42cd2614669.jpg)
![graph TD A["TTL-H (Laser Fire)"] --> B["Manual On/Off"] B --> C["WP"] C --> D["G"] D --> E["IN"] E --> F["5V"] F --> G["Energy Control Signal"] style A fill:#f9f,stroke:#333 style B fill:#ccf,stroke:#333 style C fill:#ccf,stroke:#333 style D fill:#ccf,stroke:#333 style E fill:#ccf,stroke:#333 style…](/content/2026/04/736060/images/03febc668698725aa3b555e0d97a4d1bca6a532fdaa4e894114edea52aa7df83.jpg)
Note: There are two ways to control energy signals:
- PWM pulse generator: (frequency laser) intensity from 20kHz to 50kHz, 5V air-to-air ratio.
- 0-5V Analog
MINGYU LASER POWER SUPPLY MODELS
L-: Laser Tube (-) FG: Ground AC: 110V/220V
P+/P: Water Protection G: Ground
IN: Power Input 5V: Output
K-: Ground K+: Low Level
24V: Output L: Active Low
| Model Parts list picture | ||
| MYJG40W | connection terminal*3 | ![]() |
| MYJG60W/80W/100W/150W | connection terminal*2high-voltage power lines*1 | ![]() |
New stable laser power supply picture and mounting (size in mm)
MYJG50W

MYJG60W



MYJG80W

MYJG130W MYJG150W (Customizable voltage stabilization function)
MYJG100W (Customizable voltage stabilization function)

Laser Power Supply Main Features:
New stable laser power supply, the biggest features: the use of mod design automatic detection of laser power signal, automatic detection of water protection!
The mounting holes are all consistent and suitable for plant line installation. The use of zero-current half-bridge soft switch circuit, so that the power supply has high efficiency, fast response speed, and is easy to integrate. Supports laser tubes from various manufacturers.
Port control is simple, can use either high or low level signals. TTL can control the laser start, stop,
At the same time, there is an abnormal protection switch, to detect the outside water, ventilation and so on are functioning.
Laser power regulation can be controlled between 0 and 5V analog signals or PWM signals. The size of the laser power.
The power supply has an open-circuit protection function: the power supply can work on the open
circuit for a short time when the protection is well grounded state, which avoids damage to the laser power supply due to the bursting of the tube.
Factory aging test: Each power supply is tested under a full load at temperature of 60 degrees, 12 hours aging test, 7 seconds, and is powered on and off 500 times.
Terminal definitions, LEDs and power detection instructions:

Power supply status Lights:
(LASER) Lights when Laser is Firing: If light is on and Laser Tube is not firing, then laser tube is broken. If laser tube is firing, then laser power is normal.
(P) Lights when Protection circuit is functioning (L) Lights when Test Switch is Pressed or TTL Signal is present
Technical parameters:
| Model | MYJG40W | MYJG60W | MYJG80W | MYJG100W | MYJG150W |
| Input | AC100-240V 50/60Hz | ||||
| Maximum current output | 20mA | 23mA | 25mA | 28mA | 36mA |
| Efficiency. | 91% | ||||
| Overflow protection | 130% of maximum current | ||||
| Open road protection | Yes (short time) | ||||
| Structure. | Fan Cooled | ||||
| Operating temperature | -30°C+65°C | ||||
| Relative humidity. | 20 to 85% RH (no dew) | ||||
| Insulation resistance | ≥50MΩ (DC500V) | ||||
| Vibration resistance | Amplitude 0.5mm frequency 10 to 55Hz 3D direction for 2 | ||||
| No downtime MTBF | ≥30,000hours | ||||
| Turn off the power test for 7 seconds | 500 times | ||||
Manufacturer: Shanghaimuxinmuyeyouxiangongsi
Address: Shuangchenglu 803nong11hao1602A-1609shi, baoshanqu, shanghai 200000 CN.
Imported to AUS: SIHAO PTY LTD, 1 ROKEVA STREETEASTWOOD NS 2122 Australia
Imported to USA: Sanven Technology Ltd., Suite 250, 9166 Anaheim Pla Rancho Cucamonga, CA 91730
| EC | REP |
E-CrossStu GmbH
Mainzer Landstr.69, 60329 Frankfurt am Main
| UK | REP |
YH CONSULTING LIMITED.
C/O YH Consulting Limited Office 147, Centurion House
London Road, Staines-upon-Thames, Surrey, TW18 4
VEVOR®
TOUGH TOOLS, HALF PRICE
Technical Support and E-Warranty Certificate
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
Certificate www.vevor.com/support
LASER POWER SUPPLY
ELECTRIC
USER
MANUAL
MODEL: MYJG 40W, MYJG 60W, MYJG
80W, MYJG 100W, MYJG 150W,

MYJG 40W MYJG 60W/80W /100W/150W
www.vevor.com/support
| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Inverter"] L["Input L"] --> TTL_L["Inverter"] P["Input P"] --> InterfaceProtection["Interface Protection"] G["Input G"] --> ControlInput["Control Input (DAC)"] IN["Input IN"] --> ControlInput 5V["5V"] --> ControlInput TTL_H --> ControlInput TTL_L --> ControlInput Int…](/content/2026/04/736060/images/c1c2341d875a0e03885809a6e3a536eb06198546bc95c72066ef0508c3cff162.jpg)
signal ground
P+/P: Water Protection G: Ground
K-: Ground
K+: Low Level
IN: Power Input 5V: Output
24V: Output
L: Active Low
| Modèle | Parties liste | image |
| MYJG40W | connexion terminal | ![]() |
| MYJG60W/80W/100W/150W | connexion terminal haute tension pouv lignes*1 | ![]() |

MYJG 40W MYJG 60W/80W /100W/150W
| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Input TTL-H Input"] L["Input L"] --> TTL_L["Input TTL-L Input"] P["Input P"] --> Interface["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["Input 5V"] --> Control Control --> DAC["5K DAC"] DAC --> Signal["Signal G…](/content/2026/04/736060/images/3f0cf743391f653f74ffa03452ee3f3a43f5b935e70059d61f9dfefd8d0f4e25.jpg)
P+/P: Water Protection G: Ground
K-: Ground
K+: Low Level
IN: Power Input
5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W MYJG100W (Customizable voltage stabilization function)

MYJG130W MYJG150W (Customizable voltage stabilization function)




London Road, Staines-upon-Thames, Surrey, TW
18 4 AX
VEVOR®
TOUGH TOOLS, HALF PRICE

MYJG 40W Power 60W/80W /100W/150W
www.vevor.com/support
| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Input TTL-H Input"] L["Input L"] --> TTL_L["Input TTL-L Input"] P["Input P"] --> Interface["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["Input 5V"] --> Control Control --> DAC["5K DAC"] DAC --> Signal["Signal G…](/content/2026/04/736060/images/6d1a066fdbd4420575cf130e9f767504746ca41a0ff69c78ed5f7b7ae68aa8b1.jpg)
P+/P: Water Protection G: Ground
K-: Ground
K+: Low Level
IN: Power Input
5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W MYJG100W (Customizable voltage stabilization function)

MYJG130W MYJG150W (Customizable voltage stabilization function)




Imported in AUS: SIHAO PTY LTD, 1 ROKEVA STREET EASTWOOD
New South Wales 2122 Australia
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| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Input TTL-H Input"] L["Input L"] --> TTL_L["Input TTL-L Input"] P["Input P"] --> Interface["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["Input 5V"] --> Control Control --> DAC["5K DAC"] DAC --> Signal["Signal g…](/content/2026/04/736060/images/0766efd755262c9dd14a71697f7ff90b597182f80ebada6e952d6169a8aca1ad.jpg)
P+/P: Water Protection, G: Ground
K-: Ground
K+: Low Level
IN: Power Input, 5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W MYJG100W (Customizable voltage stabilization function)

MYJG130W MYJG150W (Customizable voltage stabilization function)





MYJG 40 W MYJG 60W/80W /100W/150W
| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Input TTL-H Input"] L["Input L"] --> TTL_L["Input TTL-L Input"] P["Input P"] --> Interface["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["Input 5V"] --> Control Control --> DAC["5K DAC"] DAC --> Signal["Signal g…](/content/2026/04/736060/images/e13fa0be986204bffbe60792b168efa4a0ef64fb124b3a649cf5b889e0fc2eea.jpg)
P+/P: Water Protection G: Ground
K-: Ground
K+: Low Level
IN: Power Input
5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W MYJG100W (Customizable voltage stabilization function)

MYJG130W MYJG150W (Customizable voltage stabilization function)





MIJNJG 40 W MIJNJG 60W/80W /100W/150W
NEED HELP? CONTACT US!
| The current circuit | HV+(High Voltage) |
![graph TD H["Input H"] --> TTL_H["Input TTL-H Input"] L["Input L"] --> TTL_L["Input TTL-L Input"] P["Input P"] --> Interface["Interface Protection"] G["Input G"] --> Control["Control input (DAC)"] IN["Input IN"] --> Control 5V["Input 5V"] --> Control Control --> DAC["5K DAC"] DAC --> Signal["Signal G…](/content/2026/04/736060/images/a6c1f7d829a462c4220b0ccf1c286d8c4f696de24a21485c9af90cee362bbbe5.jpg)
P+/P: Water Protection G: Ground
K-: Ground
K+: Low Level
IN: Power Input
5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W MYJG100W (Customizable voltage stabilization function)

MYJG130W MYJG150W (Customizable voltage stabilization function)




certificate ate www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
www.vevor.com/support
LASER POWER SUPPLY USER MANUAL
MODEL: MYJG 40W, MYJG 60W, MYJG 80W, MYJG 100W, MYJG 150W,

MYJG 40W, MYJG 60W/80W/100W/150W
| The current circuit | HV+(High Voltage) |
P+/P: Water Protection, G: Ground
K-: Ground
K+: Low Level
IN: Power Input
5V: Output
24V: Output
L: Active Low
MYJG50W

MYJG60W





MYJG80W, MYJG100W (Customizable voltage stabilization function)

MYJG130W, MYJG150W (Customizable voltage stabilization function)




Place, Rancho Cucamonga, CA 91730
| EC | REP |
E- CrossStu GmbH
Centurion House, London Road, Staines-upon-
Thames, Surrey, TW18 4AX



