Leyu offers multiple output power supplies for equipment that requires two or more DC voltage rails from one AC power source.
The range includes dual output, triple output and quad output switching power supplies, allowing different circuits or components inside the same system to operate at different voltage levels without using several separate AC-DC power units.
Available configurations include combinations such as 5V + 12V, 5V + 24V, ±15V, 5V + 12V + -12V and 5V + 12V + 24V + -12V, depending on the selected model.
These power supplies are suitable for industrial control systems, automation equipment, electronic devices, communication equipment and other applications where multiple DC voltage rails are required.
Series | Output Configuration | Typical Voltage Combinations | Typical Power Level |
|---|---|---|---|
D Series | Dual Output | 5V + 12V, 5V + 24V, ±15V | Around 60W |
T Series | Triple Output | 5V + 12V + -12V, 5V + 12V + 24V | Around 60W |
Q Series | Quad Output | 5V + 12V + 24V + -12V and other combinations | Around 120W |
Use this table as a starting point. Final selection should be based on the voltage and current required on each individual output channel, not total wattage alone.
A dual output power supply provides two DC voltage rails from one unit.
Leyu D Series models are suitable for equipment containing two circuits that operate at different DC voltages.
Available combinations include configurations such as:
5V + 12V
5V + 24V
+15V / -15V
Dual output models can help simplify equipment wiring where two regulated voltage rails are required.
Typical applications include industrial controllers, electronic equipment, analog circuits and embedded systems.
A triple output power supply provides three DC voltage rails for equipment containing several different electrical loads.
Leyu T Series models are available with configurations such as:
5V + 12V + -5V
5V + 12V + -12V
5V + 15V + -15V
5V + 12V + 24V
Triple output configurations are particularly useful when control, logic and peripheral circuits require different operating voltages from the same power unit.
A quad output power supply provides four DC voltage rails within one power supply.
Leyu Q Series models are designed for equipment with more complex internal power requirements and are available with voltage combinations such as:
5V + 12V + -5V + -12V
5V + 15V + -5V + -15V
5V + 12V + 24V + -12V
Using one quad-output unit can reduce the need to install several independent AC-DC power supplies inside the same equipment.
A multiple output power supply converts one AC input into two or more regulated DC output rails.
Each output can operate at a different voltage depending on the internal design of the power supply. For example, one unit may provide:
5V + 12V + -12V
This allows one power supply to support several circuits inside the same machine.
A 5V rail might power digital electronics, while 12V or 24V rails may support other control or peripheral components. Positive and negative voltage rails such as ±12V or ±15V can also be used in suitable analog circuit designs.
The exact function of each output depends on the electrical architecture of the equipment.
Different equipment architectures require different voltage combinations.
Suitable for systems combining low-voltage control electronics with 12V components.
Can be used in equipment containing low-voltage electronics together with industrial 24V control components.
Positive and negative 15V rails are commonly associated with suitable analog and signal-processing circuit designs.
Provides a low-voltage logic rail together with positive and negative 12V outputs.
Useful for systems containing several control and peripheral voltage requirements.
Provides four voltage rails from one AC-DC power unit for more complex electrical systems.
The correct voltage combination should always be selected according to the actual loads in the equipment rather than application name alone.
Multiple output power supply selection requires checking each output separately.
Identify how many DC voltage rails the equipment requires.
Choose between:
Dual output
Triple output
Quad output
Using more outputs than required usually adds unnecessary system complexity.
List every required DC voltage clearly.
For example:
Output 1: 5V DC
Output 2: 12V DC
Output 3: -12V DC
Then compare the requirement with the available D, T or Q series configuration.
Do not select a multiple output power supply based only on its total wattage.
Each rail has its own allowable output current.
For example, a triple output supply may provide different current limits on its 5V, 12V and negative-voltage outputs.
Therefore, confirm:
Voltage per channel
Required current per channel
Maximum load on each channel
before selecting a model.
After verifying individual output loads, calculate the combined power requirement.
The total load must remain within the rated output capability of the power supply and within any channel-specific limitations listed in the datasheet.
Multiple output designs can behave differently depending on how the total load is distributed across the output rails.
An application that heavily loads one output while placing very little load on another may affect regulation performance in some designs.
Always verify the permitted load range and regulation specifications for the selected model.
Check:
Available mounting space
Ventilation
Ambient temperature
Cooling requirements
Wiring arrangement
Terminal access
Mechanical installation should be evaluated together with electrical specifications.
A common mistake when selecting a multi-output power supply is to compare only total rated power.
For example, a 60W triple output power supply does not necessarily mean that each output can independently supply 20W.
Each voltage rail has its own current capability.
For a system requiring:
5V at 4A
12V at 2A
-12V at 0.3A
all three current requirements must be checked against the technical specifications of the selected model.
This is especially important in industrial equipment where different circuits may have very different load demands.
Choose a multiple output power supply when several circuits inside one device require different DC voltages.
For example:
5V + 12V + -12V
can be supplied from one suitable triple-output unit.
Choose a single output power supply when the equipment mainly operates from one regulated voltage such as 12V, 24V or 48V.
Using a single-output unit for a single-voltage system generally provides a simpler electrical architecture.
For systems requiring only one DC rail, explore our Single Output Power Supply range.
Multiple DC rails can support different control boards, signal circuits and electrical components within one industrial control system.
Automation equipment may combine low-voltage electronics with relays, controllers and peripheral components operating at different DC voltages.
Equipment containing digital and analog circuitry may require positive, negative and low-voltage DC rails within the same system.
Communication devices can contain several internal modules with different power requirements, making multi-output AC-DC power conversion useful in suitable designs.
Dual, triple and quad output power supplies can simplify internal power architecture when an electronic system requires several regulated voltage rails.
Equipment manufacturers can use one multi-output unit to replace several separate power supplies when voltage, current and regulation requirements are compatible.
The choice is mainly determined by the number of voltage rails required.
Your system requires two DC outputs.
Example:
5V + 12V
or
+15V / -15V
Your system requires three DC outputs.
Example:
5V + 12V + -12V
Your equipment requires four DC outputs.
Example:
5V + 12V + 24V + -12V
After choosing the number of outputs, compare the required current on each rail with the selected model specifications.
Standard D, T and Q series models can meet many equipment requirements.
For projects requiring a different electrical configuration, OEM or ODM requirements can be evaluated based on:
Number of outputs
Voltage of each output
Current of each output
Total rated power
Input voltage
Product dimensions
Installation requirements
Application
Required quantity
Target market
Providing complete channel-by-channel electrical requirements helps our team evaluate whether an existing model or customized solution is more suitable.
If your application does not require several DC output rails, another power supply type may be more suitable.
Single Output Power Supply
For equipment requiring one regulated DC output.
DIN Rail Power Supply
For industrial control panels and DIN rail installations.
UPS Power Supplies & Battery Chargers
For applications requiring DC power together with battery charging or backup capability.
DC-DC Switching Power Supply
For conversion between different DC voltage levels.
Power Supply
View the complete Leyu power supply product range.
A dual output power supply provides two DC voltage rails, a triple output model provides three, and a quad output model provides four. Select the configuration according to the number of voltages required by your equipment.
Yes. Different output rails can have different rated current capabilities. Always check the allowable current for each channel instead of assuming the total wattage is divided equally between outputs.
List the voltage required by every circuit in the equipment first. Then select a power supply whose available output rails match those voltage requirements and confirm that each channel can provide sufficient current.
In many suitable applications, yes. A multi-output unit can reduce the number of separate AC-DC supplies required, provided its voltage, current, regulation and total power specifications match the system requirements.
Provide the number of outputs, voltage and current required on each output, input voltage, total power requirement, equipment application, estimated quantity and any dimensional or certification requirements.
Our team can then help determine whether a D Series, T Series or Q Series multiple output power supply is suitable for your project.
