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Intextec

Owon P4305 1 Channel DC Power Supply 0-30V 0-5A

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Type : NEW

Pickup available at Intextec

Usually ready in 24 hours

Core Output Characteristics

  • Output Channels: 1 (Single)

  • Output Voltage Range: 0 - 30 V

  • Output Current Range: 0 - 5 A

  • Maximum Output Power: 150 W (30V x 5A)

  • Regulation: Linear (for low noise/ripple performance)

  • Cooling: Temperature-controlled fan (activates as needed).

Performance & Accuracy (Typical)

  • Load Regulation: ≤ 0.01% + 2 mV (Voltage), ≤ 0.01% + 3 mA (Current)

  • Line Regulation: ≤ 0.01% + 2 mV (Voltage), ≤ 0.01% + 3 mA (Current)

  • Ripple & Noise (RMS): ≤ 2 mV (Voltage), ≤ 3 mA (Current)

  • Setup Resolution: 1 mV / 1 mA

  • Readback Resolution: 0.1 mV / 0.1 mA (Higher than setup for precise monitoring)

  • Voltage Readback Accuracy: ±(0.05% + 2 digits)

  • Current Readback Accuracy: ±(0.1% + 2 digits)

Key Features & Functions

  1. Dual Display: Bright 3.4-inch color TFT LCD showing Voltage (V) and Current (A) simultaneously.

  2. Three Operation Modes:

    • Constant Voltage (CV): Maintains set voltage.

    • Constant Current (CC): Maintains set current (for charging, LED driving, or overload protection).

    • Automatic Crossover: Automatically switches between CV and CC based on load demand.

  3. Memory Presets: Stores and recalls 10 groups of voltage/current settings (M0-M9).

  4. Output Control: Front-panel OUTPUT button to enable/disable power safely.

  5. Overload Protection (OCP): Built-in protection that shuts off output if current limit is exceeded.

  6. Thermal Protection: Automatic shutdown if internal temperature is too high.

  7. Key Lock Function: Prevents accidental changes to settings.

  8. Short-Circuit Proof: Designed to safely handle output shorts (operates in CC mode).

Input & Connectivity

  • AC Input: 100-240 VAC, 50/60 Hz (Universal input for worldwide use).

  • Power Cord: Standard IEC 60320 C13 connector.

  • Output Terminals: Front-panel Binding Posts (positive, negative, and earth ground).

  • Remote Sensing Terminals: Not present on the P4305. This is a limitation for applications requiring compensation of voltage drop in long leads.

  • USB Interface: USB-B (Device) port for connection to a PC. Can be controlled and monitored via software (Owon provides SCPI commands or software).

  • Other Interfaces: None (No LAN, GPIB, etc.).

Physical & Environmental

  • Dimensions (Approx.): 225mm (W) x 155mm (D) x 155mm (H)

  • Weight: ~3.5 kg

  • Operating Temperature: 0°C to +40°C

  • Storage Temperature: -20°C to +70°C

Package Contents (Typical)

  • Owon P4305 Power Supply Unit

  • Power Cord (region-specific)

  • Instruction Manual

  • USB Cable (may or may not be included depending on the retailer; verify at purchase)

Pros and Cons Summary



Pros Cons
High 150W Power in a 30V/5A package Linear design can be less efficient and generate more heat than switching models
Excellent low noise/ripple (ideal for sensitive analog circuits) No remote sensing terminals
Color TFT display is clear and informative Basic PC connectivity (USB only)
10 memory presets for repetitive tasks Fan can become audible under high load
Simple, intuitive interface Binding posts may be small for very large cables
Good accuracy and resolution for its class

Ideal Use Cases:

  • General electronics bench work, prototyping, and repair.

  • Testing and powering microcontrollers, sensors, and analog circuits where clean power is crucial.

  • Lab environments where low electrical noise is a priority.

  • Battery charging (in CC mode with proper supervision).

  • Educational settings.

The Owon P4305 is a solid, no-frills linear bench power supply that offers clean power, good programmability, and a high maximum wattage for its size, making it a popular choice for hobbyists, technicians, and engineers who prioritize performance over advanced features.