Voltage Regulation Circuit

Product Specifications

Technical details and manufacturing context for Voltage Regulation Circuit

Definition

A voltage regulation circuit is a component used in power supply units (PSUs) to ensure that connected devices receive a consistent voltage. It automatically adjusts to compensate for fluctuations in input voltage or changes in electrical load, preventing damage to sensitive electronics and ensuring reliable operation. The circuit typically includes semiconductor components such as transistors or integrated circuits, along with resistors, capacitors, and a printed circuit board (PCB). It is designed for a wide input voltage range of 9–36 V DC, making it suitable for automotive and industrial applications. The output voltage is fixed at 5 V DC, with other voltages available on request. The continuous output current rating ranges from 0.5 to 3 A. Key performance parameters include line regulation of ±0.2% (output voltage change over full input range), load regulation of ±0.5% (output voltage change from no load to full load), and ripple and noise of ≤50 mV peak-to-peak at full load. Efficiency varies between 85% and 95%, depending on input voltage and load. The operating temperature range is -40 to 85 °C, and the storage temperature range is -55 to 125 °C. The protection rating, according to IEC 60529, is IP54 to IP65, depending on the enclosure. Typical dimensions are 50×40×20 mm, and weight ranges from 30 to 50 g, depending on configuration. These values are reference ranges for directory purposes; actual specifications must be confirmed with the legal manufacturer or supplier for the specific model and application.

Working Principle

The circuit continuously monitors the output voltage using feedback mechanisms, typically through voltage dividers and error amplifiers. When deviations from the target voltage are detected, it adjusts the conduction of regulating elements, such as transistors or integrated regulators, to increase or decrease the output, maintaining it within specified tolerances. This closed-loop control ensures stable voltage delivery under varying input and load conditions.

Common Materials

Semiconductor components (transistors, ICs), Resistors, Capacitors, Printed Circuit Board (PCB)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Voltage Range	9–36 V DC	Wide input range for automotive and industrial applications
Output Voltage	5 V DC	Fixed output; other voltages available on request
Output Current	0.5–3 A	Continuous current rating
Line Regulation	±0.2 %	Output voltage change over full input range
Load Regulation	±0.5 %	Output voltage change from no load to full load
Ripple and Noise	≤50 mV p-p	Peak-to-peak at full load
Efficiency	85–95 %	Depends on input voltage and load
Operating Temperature	-40–85 °C	Ambient temperature range
Storage Temperature	-55–125 °C	Non-operating storage
Protection Rating	IP54–IP65	Depends on enclosureIEC 60529
Dimensions	50×40×20 mm	Typical PCB module size
Weight	30–50 g	Depends on configuration

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

Voltage Reference
Provides a stable reference voltage for comparison

Material: Semiconductor (Zener diode, bandgap reference IC)
Error Amplifier Part
Amplifies the difference between output voltage and reference voltage

Material: Semiconductor (operational amplifier IC)
Pass Element
Controls current flow to regulate output voltage (e.g., transistor, MOSFET)

Material: Semiconductor
Feedback Network Part
Samples output voltage and provides feedback to error amplifier

Material: Resistors, capacitors

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Voltage Regulation Circuit.

Applied To / Applications

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

Power Supply Units

View system integration details

Manufacturers of Voltage Regulation Circuit

Manufacturer profiles associated with Voltage Regulation Circuit.

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Frequently Asked Questions

What is the input voltage range of this voltage regulation circuit?

The input voltage range is 9–36 V DC, suitable for automotive and industrial applications. Confirm the exact range for your specific model with the manufacturer.

What is the output voltage and current rating?

The output voltage is fixed at 5 V DC, with other voltages available on request. The continuous output current rating is 0.5–3 A. Verify these values for your application.

How does the circuit maintain stable output voltage?

It uses feedback mechanisms, including voltage dividers and error amplifiers, to monitor the output. When deviations occur, it adjusts the conduction of regulating elements to correct the output within specified tolerances.

What are the operating temperature limits?

The operating temperature range is -40 to 85 °C, and the storage temperature range is -55 to 125 °C. Ensure your environment stays within these limits.

Data Basis

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

Preliminary Technical Classification

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humidity:	0-95% non-condensing
temperature:	-40°C to +85°C (operating), -55°C to +125°C (storage)
voltage range:	Input: 4.5V to 40V DC, Output: 1.2V to 37V adjustable
current capacity:	Up to 3A continuous output current

Product Specifications

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