Editorial Technical Reference

Programmable Power Supply

This page explains how Programmable Power Supply is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precision power supply unit that can be digitally controlled to output specific voltage and current levels for testing purposes.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Programmable Power Supply

Definition
This programmable power supply is a component used in automated test systems, specifically within an Automated Computer Motherboard Burn-In Tester. It provides precisely controlled electrical power to the motherboard under test, enabling automated testing protocols by allowing the system to programmatically adjust voltage and current outputs. This capability simulates various operating conditions, stress tests components, and verifies motherboard stability and performance under different power scenarios. The unit converts AC input to regulated DC output using switching or linear regulation technology. A digital interface, typically via GPIB, USB, Ethernet, or RS-232, allows the burn-in tester's control system to set desired voltage and current limits. Internal feedback circuits continuously monitor output parameters and adjust regulation to maintain programmed values, while protection circuits prevent damage from overloads or short circuits. Key specifications include an output voltage range of 0–30 V DC programmable in 1 mV steps, an output current range of 0–5 A programmable in 0.1 mA steps, voltage accuracy of ±0.05% of setting + 5 mV, current accuracy of ±0.1% of setting + 5 mA, ripple and noise ≤1 mVrms (20 Hz – 20 MHz), load regulation ≤0.01% of full scale, line regulation ≤0.01% of full scale, programming resolution of 1 mV / 0.1 mA, readback resolution of 0.1 mV / 0.01 mA, operating temperature 0–40 °C, storage temperature -20–60 °C, humidity range 20–80% RH non-condensing, protection rating IP20 per IEC 60529, and weight 5–10 kg depending on model. Materials include an aluminum alloy housing, copper windings, silicon semiconductors, printed circuit boards, and plastic connectors. These values are directory reference ranges; verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The programmable power supply converts AC input to regulated DC output using switching or linear regulation technology. A digital interface (typically via GPIB, USB, Ethernet, or RS-232) allows the burn-in tester's control system to set desired voltage and current limits. Internal feedback circuits continuously monitor output parameters and adjust regulation to maintain programmed values, while protection circuits prevent damage from overloads or short circuits.
Common Materials
Aluminum alloy housing, Copper windings, Silicon semiconductors, Printed circuit boards, Plastic connectors
Technical Parameters
ParameterTypical rangeNotes & selection driver
Output Voltage Range0–30 V DCProgrammable in 1 mV steps
Output Current Range0–5 AProgrammable in 0.1 mA steps
Voltage Accuracy±0.05 % of setting + 5 mVAt 23 ±5 °C
Current Accuracy±0.1 % of setting + 5 mAAt 23 ±5 °C
Ripple and Noise≤1 mVrms20 Hz – 20 MHz
Load Regulation≤0.01 % of full scaleFor 0–100% load change
Line Regulation≤0.01 % of full scaleFor ±10% line variation
Programming Resolution1 mV / 0.1 mAVoltage / current
Readback Resolution0.1 mV / 0.01 mAVoltage / current
Operating Temperature0–40 °CFull accuracy at 23 ±5 °C
Storage Temperature-20–60 °CNon-condensing
Humidity Range20–80 % RHNon-condensing
Protection RatingIP20Indoor use onlyIEC 60529
Weight5–10 kgDepending on model

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Power Transformer
    Steps down AC input voltage to appropriate level for regulation
    Material: Copper windings, silicon steel core
  • Rectifier Circuit
    Converts AC to DC using diode bridges
    Material: Silicon diodes, printed circuit board
  • Filter Capacitors Part
    Smooths rectified DC output and reduces ripple
    Material: Aluminum electrolytic capacitors
  • Voltage Regulator
    Maintains stable output voltage regardless of load or input variations
    Material: Silicon semiconductors, heat sinks
  • Microcontroller Part
    Processes programming commands and controls output parameters
    Material: Silicon chip, printed circuit board
  • Digital-to-Analog Converter
    Converts digital programming commands to analog control signals
    Material: Silicon integrated circuit
  • Current Sensing Circuit
    Monitors output current for regulation and protection
    Material: Precision resistors, operational amplifiers
  • Output Terminals Part
    Connection points for attaching to motherboard under test
    Material: Copper alloy, plastic insulation
  • Protection Circuit
    Folds back or shuts down on overload and short circuit.
  • Digital Interface
    The GPIB / USB / Ethernet / RS-232 port the tester sets voltage and current through.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (electronic device, not fluid handling)
other spec: Output voltage range: 0-60V, Output current range: 0-10A, Power rating: 600W max, Accuracy: ±0.1% + 2mV, Ripple: <2mVrms
temperature: 0°C to 40°C operating, -20°C to 70°C storage
Media Compatibility
✓ Electronic circuit testing ✓ Battery charging/discharging simulation ✓ Sensor calibration setups
Unsuitable: High-vibration industrial environments (affects precision measurement)
Sizing Data Required
  • Maximum voltage requirement (V)
  • Maximum current requirement (A)
  • Required measurement accuracy and resolution

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Output Voltage Instability
Cause: Aging or failure of internal voltage reference components, such as Zener diodes or precision resistors, due to thermal stress or contamination, leading to drift or erratic output.
Power Stage Failure
Cause: Overheating or overcurrent in switching transistors (e.g., MOSFETs) or rectifiers, often from inadequate cooling, excessive load demands, or transient voltage spikes, causing thermal runaway or component breakdown.
Maintenance Indicators
  • Audible buzzing or high-pitched whining from the unit, indicating potential transformer saturation, capacitor issues, or arcing in high-voltage sections.
  • Visible discoloration, bulging, or leaking of electrolytic capacitors on the internal PCB, signaling imminent failure due to heat or aging.
Engineering Tips
  • Implement regular thermal management checks: Ensure adequate ventilation, clean air filters, and verify cooling fans are operational to prevent overheating of sensitive components like power semiconductors and capacitors.
  • Use external surge protection and ensure proper grounding: Install transient voltage suppressors (TVSS) and maintain a stable, clean power input to shield internal circuitry from line spikes and electrical noise, reducing stress on regulation components.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use CE marking: Compliance with EU directives for electromagnetic compatibility (EMC) and low voltage (LVD)

Quoted from the published standard.

Manufacturing Precision
  • Output voltage accuracy: +/-0.1% of setting
  • Load regulation: +/-0.01% of full scale
Quality Inspection
  • Performance verification test: Measurement of output voltage and current accuracy under various load conditions
  • Safety compliance test: Dielectric strength and insulation resistance testing

Manufacturers of Programmable Power Supply

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Huyssen Technology Co., Ltd.
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is the output voltage range of this programmable power supply?

The output voltage range is 0–30 V DC, programmable in 1 mV steps. This is a reference range; confirm the exact range for the specific model with the manufacturer.

What communication interfaces are available for remote control?

The unit typically supports GPIB, USB, Ethernet, or RS-232 interfaces. The specific interface options depend on the model, so verify with the supplier.

What is the ripple and noise specification?

Ripple and noise is ≤1 mVrms over a bandwidth of 20 Hz to 20 MHz. This is a typical value; check the datasheet for the exact model.

What protection features does the power supply have?

The unit includes protection circuits to prevent damage from overloads or short circuits. Specific protection features may vary by model; consult the manufacturer for details.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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