Owon ODP3032 30V/3A/195W Linear DC Power Supply, Programmable, 2+1 Channel

Channel Configuration & Power Distribution

• Total Power: 195W

• Channel Configuration: 2+1 Independent Channels

  • CH1: 0-30V, 0-3A, 90W max

  • CH2: 0-30V, 0-3A, 90W max

  • CH3: 0-5V, 0-3A, 15W max (Fixed 5V logic supply)

• Tracking Modes: CH1 & CH2 can operate in:

  • Independent Mode: Separate control

  • Series Tracking Mode: CH2 follows CH1 (0-60V, 0-3A)

  • Parallel Tracking Mode: Combined current (0-30V, 0-6A)

Performance Specifications

Main Channels (CH1 & CH2)

• Voltage Range: 0-30V

• Current Range: 0-3A

• Power per Channel: 90W max

• Voltage Regulation:

  • Line Regulation: ≤ 0.01% + 1mV

  • Load Regulation: ≤ 0.01% + 2mV

• Current Regulation:

  • Line Regulation: ≤ 0.2% + 3mA

  • Load Regulation: ≤ 0.2% + 3mA

• Ripple & Noise:

  • CV Mode: ≤ 350μV RMS / 2mV p-p

  • CC Mode: ≤ 3mA RMS

• Setting Resolution: 1mV / 1mA

• Readback Resolution: 0.1mV / 0.1mA

• Readback Accuracy: ±(0.05% + 5mV) / ±(0.2% + 5mA)

• Transient Response: < 50μs

Fixed Channel (CH3)

• Voltage: Fixed 5V ±1%

• Current: 0-3A

• Power: 15W max

• Ripple: ≤ 10mV RMS

• Load Regulation: ≤ 0.1% + 5mV

Key Features

1. Display System

• Display Type: 3.5-inch color TFT LCD (320×240 pixels)

• Display Layout:

  • Primary: CH1 & CH2 voltage/current simultaneously

  • Secondary: CH3 status, tracking mode, protection settings

  • Graphical: Real-time current waveform display

• Backlight: Adjustable brightness

2. Operation Modes

• Constant Voltage (CV) / Constant Current (CC) with auto-crossover

• Independent Mode: CH1 & CH2 fully independent

• Tracking Modes:

  • Series: CH2 = CH1 (for higher voltage applications)

  • Parallel: CH1+CH2 = Combined current (I₁+I₂)

• Master/Slave: CH1 as master, CH2 as slave

3. Memory System

• 10 Non-volatile Memories: Store complete setups (V/I, protection limits, mode)

• Quick Recall: Direct access via front panel

• Save/Load: Via USB to external storage

4. Protection Features

• OVP (Over Voltage Protection): User-programmable (0.1V steps)

• OCP (Over Current Protection): User-programmable (1mA steps)

• OTP (Over Temperature Protection): Automatic shutdown

• Short Circuit Protection: Auto current limiting

• Reverse Polarity Protection: For external back-EMF

• Over Power Protection: Automatic based on voltage/current product

Programming & Control Capabilities

Front Panel Controls

• Rotary encoder with push-button selection

• Dedicated numeric keypad

• Soft keys for menu navigation

• Individual CH1/CH2/CH3 selection buttons

• OUTPUT on/off with status LED

Remote Programming

• Interface: USB-B (device port)

• Protocol: SCPI command set (IEEE 488.2 compatible)

• Baud Rate: Up to 115200 bps

• Software: Owon PSU Manager (Windows)

• Supported Commands: Full remote control of all functions

Sequence Programming

• Basic sequence capability (timed steps)

• Programmable ON/OFF durations

• Simple sweep functions (manual control)

Physical & Electrical Specifications

Input Power

• AC Input: 100-240VAC, 50/60Hz, auto-ranging

• Power Consumption: ≤ 250VA (max)

• Power Factor: >0.9 (typical)

• Inrush Current: <30A (cold start)

Cooling System

• Type: Linear power supply (no switching noise)

• Cooling: Temperature-controlled fan

• Fan Speed: Variable based on temperature

• Airflow: Rear to front ventilation

Output Terminals

• CH1 & CH2: 4mm safety banana jacks (red/black)

• CH3: 4mm safety banana jacks (yellow/black)

• Ground: Dedicated earth terminal

• Remote Sense: Not available on this model

Environmental

• Operating Temperature: 0°C to 40°C (32°F to 104°F)

• Storage Temperature: -20°C to 70°C (-4°F to 158°F)

• Relative Humidity: <80% (non-condensing)

• Altitude: Up to 2000m

• Dimensions (W×H×D): 222 × 155 × 355 mm (8.74 × 6.10 × 13.98 in)

• Weight: 7.5 kg (16.5 lbs)

Package Contents

• ODP3032 Power Supply Unit

• Power cable (IEC C13)

• Test leads with alligator clips (3 pairs)

• USB cable (Type A to Type B)

• User manual

• Certificate of calibration

• Rack mount ears (optional/separate purchase)

Safety & Compliance

• Safety Standards: IEC 61010-1, UL 61010-1

• EMC Standards: EN 61326-1

• Insulation: Class I equipment

• Protection Class: IP20 (front panel)

• Pollution Degree: 2

• Overvoltage Category: II

• CE Mark: Yes

• RoHS: Compliant

• Warranty: 3 years

Applications

Ideal Uses:

1. Mixed-Signal Circuit Development: CH1/CH2 for analog, CH3 for digital logic

2. Op-Amp Testing: Dual symmetrical supplies

3. Audio Equipment Testing: Clean, low-noise linear power

4. Sensor Development: Precision low-noise supplies

5. Educational Labs: Teaching power supply fundamentals

6. Battery-Powered Device Testing: Simulating battery conditions

7. Comparator/Schmitt Trigger Testing: Using tracking mode

Specific Advantages:

• Low Noise: Linear design provides <350μV ripple

• Tracking Modes: Flexible series/parallel configurations

• Built-in Logic Supply: Dedicated 5V/3A channel saves bench space

• Precision Control: 1mV/1mA setting resolution

• Compact Design: Triple output in single 3U chassis

Limitations & Considerations

• No Remote Sense: Cannot compensate for lead voltage drop

• No Ethernet/GPIB: USB interface only

• Fixed 5V Channel: CH3 not adjustable (fixed voltage)

• Limited Programming: Basic sequences only (not full arbitrary waveforms)

• Fan Noise: Audible under high load (typical for linear supplies)

Comparison with Similar Models

The Owon ODP3032 is an excellent choice for electronics labs requiring clean, low-noise power for analog circuits with the convenience of a built-in logic supply. Its linear design makes it particularly suitable for audio, sensor, and precision measurement applications where switching noise would be problematic.