High-Voltage Power Supply for EFO Units

Product Specifications

Technical details and manufacturing context for High-Voltage Power Supply

Definition

Within an Electronic Flame-Off (EFO) Unit, the High-Voltage Power Supply is the critical component responsible for converting standard input power into a precisely controlled, high-voltage, low-current output. This output is used to create the electrical arc or spark necessary for the EFO's function, such as cutting, fusing, or melting fine wires (e.g., in semiconductor bonding processes) with extreme accuracy and minimal thermal damage to surrounding materials. The unit is designed for integration into original equipment, not as a standalone consumer product. It accepts a universal AC input (85–264 V AC, 47–63 Hz) and provides an adjustable output voltage from 0 to 30 kV DC, with an adjustable current limit from 0 to 10 mA. Voltage regulation is ±0.1% for line and load variations, and ripple is ≤0.05% peak-to-peak of rated output. The operating temperature range is 0–50°C with derating above 40°C, and storage temperature is -20–70°C. Relative humidity must be kept between 20–80% non-condensing. The unit is rated IP20 for indoor use only, per IEC 60529. Efficiency is ≥85% at full load and nominal line. Mechanical dimensions are 482×88×350 mm (19-inch rack mount, 2U), and weight is ≤8 kg. Key components include a printed circuit board, high-voltage capacitors, high-frequency transformers, semiconductor switches (MOSFETs/IGBTs), and heat sinks. The power supply employs a switching regulator or inverter circuit to step up input voltage, converting low-voltage DC or AC to high-voltage AC, which is then rectified and filtered to produce a stable high-voltage DC output. Advanced units incorporate feedback control loops to regulate output voltage and current precisely, ensuring consistent performance of the EFO spark. For procurement, verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges for the product family.

Working Principle

The power supply typically uses a switching regulator or inverter circuit to step up the input voltage. It converts low-voltage DC or AC input to high-voltage AC, which is then rectified and filtered to produce a stable high-voltage DC output. Advanced units incorporate feedback control loops to regulate output voltage and current precisely, ensuring consistent performance of the EFO spark.

Common Materials

Printed Circuit Board (PCB), High-voltage capacitors, High-frequency transformers, Semiconductor switches (MOSFETs/IGBTs), Heat sinks

Technical Parameters

Parameter	Typical range	Notes & selection driver
Output Voltage Range	0–30 kV DC	Adjustable, regulated output
Output Current	0–10 mA	Current limit adjustable
Voltage Regulation	±0.1 %	Line and load regulation
Ripple	≤0.05 % p-p	Peak-to-peak of rated output
Input Voltage	85–264 V AC	Universal input, 47–63 Hz
Operating Temperature	0–50 °C	Derate above 40°C
Storage Temperature	-20–70 °C	Non-condensing
Relative Humidity	20–80 % RH	Non-condensing
Protection Class	IP20	Indoor use onlyIEC 60529
Efficiency	≥85 %	At full load, nominal line
Dimensions (W×H×D)	482×88×350 mm	19-inch rack mount, 2U
Weight	≤8 kg	Approximate, varies with options

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

Inverter/Converter Stage
Converts input power to high-frequency AC.

Material: Semiconductors (MOSFETs/IGBTs), Ferrite cores
High-Voltage Transformer
Steps up the AC voltage to the required high-voltage level.

Material: Ferrite or nanocrystalline core, Enameled copper wire
Rectifier and Filter
Converts high-voltage AC to DC and smoothes the output.

Material: High-voltage diodes, Ceramic capacitors
Control and Feedback Circuitry
Monitors output and adjusts the inverter to maintain stable voltage/current.

Material: PCB, Microcontroller/ASIC, Precision resistors
Output Connector/Interface Part
Provides the high-voltage connection to the EFO electrode.

Material: High-voltage rated insulator (e.g., ceramic, PTFE), Metal contact

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Voltage Power Supply.

Applied To / Applications

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

Electronic Flame-Off (EFO) Unit

View system integration details

Manufacturers of High-Voltage Power Supply

Manufacturer profiles associated with High-Voltage Power Supply.

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Frequently Asked Questions

What is the typical application of this high-voltage power supply?

It is used within an Electronic Flame-Off (EFO) unit to generate a precise electrical arc for cutting, fusing, or melting fine wires, such as in semiconductor bonding processes.

What are the key electrical specifications?

The output voltage is adjustable from 0 to 30 kV DC, output current from 0 to 10 mA, with voltage regulation of ±0.1% and ripple ≤0.05% p-p. Input is 85–264 V AC, 47–63 Hz.

What environmental conditions are required?

Operating temperature is 0–50°C with derating above 40°C, storage -20–70°C, and relative humidity 20–80% non-condensing. The unit is rated IP20 for indoor use only.

How should I verify the suitability for my application?

Always confirm model-specific values, standards, and compliance with the legal manufacturer or supplier, as the listed parameters are reference ranges for the product family.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric to 1.5 bar absolute (sealed enclosure)
other spec:	Output voltage stability: ±0.1%, Ripple: <0.01% RMS, Load regulation: ±0.05%
temperature:	-20°C to +85°C operating, -40°C to +105°C storage

High-Voltage Power Supply

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards