This Mornsun LM75-10C051212-28 switching power supply is a similar alternative to the RB65. It has stable performance and can provide power for your Eurorack system.
The Mornsun LM75-10C051212-28 is a high-performance switching power supply designed to meet the power supply requirements of complex electronic devices. It features three outputs, capable of providing stable power to different modules simultaneously. It is especially suitable for Eurorack systems with extremely high requirements for power stability and reliability, as well as fields such as industrial control, communication equipment, and instrumentation. Its compact design and excellent electrical performance ensure efficient operation in limited spaces, providing a solid guarantee for the stable operation of various devices.
Ⅱ. Technical Parameters
1. Input Characteristics
Voltage Range: 90 – 264VAC, which can adapt to mains power inputs in different regions around the world, with strong compatibility.
Frequency Range: 47 – 63Hz, enabling stable operation in common mains frequency environments.
2. Output Characteristics
First Output: The output voltage is +5V, and the maximum output current can reach 6A, which can provide stable power for digital circuit modules with high requirements for voltage accuracy.
Second Output: The output voltage is +12V, and the maximum output current is 2.8A, suitable for driving analog circuits or small motors with relatively low power.
Third Output: The output voltage is -12V, and the maximum output current is 0.5A, providing necessary support for circuits that require negative voltage power supply, such as operational amplifiers.
3. Efficiency and Power Consumption
Conversion Efficiency: The typical value is as high as 85%, which effectively reduces energy consumption and the self – heating of the power supply, improving energy utilization efficiency.
No – load Power Consumption: Less than 0.5W, which can effectively save energy in standby mode.
4. Working Environment
Temperature Range: The working temperature is – 30℃ – +70℃, and it can work normally in relatively harsh ambient temperature conditions; the storage temperature is – 40℃ – +85℃, ensuring the reliability of the power supply under different environmental conditions.
Humidity Range: Relative humidity is 5% – 95%, without condensation, adapting to different humidity environments and ensuring that the internal circuits are not affected by water vapor.
Ⅲ. Usage Method
1. Installation
Select a well – ventilated location away from heat sources (such as radiators, high – heat – generating devices) and strong electromagnetic interference sources (such as large motors, transformers) for installation.
Use the supporting installation accessories to firmly fix the power supply on the equipment chassis or installation panel to ensure that the power supply will not shift or loosen due to vibration during the operation of the equipment.
2. Wiring
Input Wiring:
Locate the power input interface, usually marked as “AC IN”. Connect an AC power cord that meets the voltage range requirements, ensuring that the live wire (L) and neutral wire (N) are connected correctly. Tighten the screws firmly when wiring to ensure good contact and prevent potential safety hazards such as poor contact, heating, or even fire caused by looseness.
It is recommended to install a suitable over – current protection device (such as a fuse) in the input circuit to protect the power supply and equipment in case of abnormal conditions.
Output Wiring:
Corresponding to the three output ports, they are marked as “+5V OUT”, “+12V OUT”, and “-12V OUT” respectively. Connect the power cords of the corresponding loads to the corresponding output ports according to the equipment requirements. Pay attention to distinguishing the positive and negative polarities when connecting to avoid damage to the equipment due to reverse connection.
For loads with large currents, select power cords of appropriate specifications to ensure that the wires can carry the corresponding current and avoid excessive line loss and heating problems.
3. Startup
After completing all wiring and carefully checking for errors, turn on the input power supply. At this time, the indicator light on the power supply should turn on, indicating that the power supply is powered on.
Use a test tool such as a multimeter to measure the voltage of each output port to confirm whether the output voltage is consistent with the set value, and the deviation should be within the allowable range (generally ±5%). If the voltage is abnormal, do not connect the load immediately. Check whether the wiring and power supply settings are correct, or contact a professional technician for troubleshooting.
Ⅳ. Precautions
1. Prohibit Overload and Short – circuit
During use, the current of any output should never exceed its maximum rated current. Overload may cause the power supply to overheat, damage internal components, and even cause a fire.
Ensure that there is no short – circuit at the output end. A short – circuit will generate a large current instantaneously, which may burn out the power supply and connected equipment instantaneously. Before connecting the load, carefully check the circuit to avoid circuit short – circuit or misconnection.
2. Regular Maintenance and Inspection
Regularly (it is recommended to check quarterly) check the appearance of the power supply to see if there are any abnormal conditions such as shell deformation, damage, or discoloration.
Check whether the wiring terminals are loose. If loose, tighten them in a timely manner. At the same time, check whether the power cord is damaged or aging. If there are any problems, replace it in a timely manner.
Regularly clean the dust on the surface of the power supply and the heat dissipation holes to maintain good heat dissipation conditions. Excessive dust accumulation may affect the heat dissipation of the power supply, resulting in performance degradation or even failure.
3. Environmental Requirements
Use the power supply strictly within the specified working temperature and humidity range. A high – temperature environment will accelerate the aging of internal components of the power supply and reduce the service life of the power supply; a high – humidity environment may cause problems such as short – circuit and corrosion of internal circuits.
Avoid using the power supply in an environment with flammable and explosive gases, liquids, or a lot of dust to prevent safety accidents.
€ 4,00 – € 14,00 Select options This product has multiple variants. The options may be chosen on the product page