Editorial Technical Reference

Voltage Sensor

This page explains how Voltage Sensor 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 device that measures and monitors electrical potential difference in a charging circuit.

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

Product Specifications

Technical details and manufacturing context for Voltage Sensor

Definition
A voltage sensor is an electronic component within a charging circuit that detects, measures, and provides feedback on the voltage level. It plays a critical role in ensuring safe and efficient charging by monitoring input/output voltages, preventing overvoltage conditions, and enabling precise control of the charging process. The sensor typically operates by converting the measured voltage into a proportional low-voltage signal using voltage divider circuits, operational amplifiers, or specialized ICs. This signal is then processed by the charging circuit's control system to regulate charging parameters and protect connected devices. The sensor is designed for use in electric vehicle (EV) charging systems and industrial battery applications, with a measurement range of 0–1000 V DC, accuracy of ±0.5% FS (Class 0.5 per IEC 61869), and response time of less than 10 ms. It features reinforced insulation for safety, with an isolation voltage of 2500 V AC (IEC 61010) and dielectric strength of 3000 V AC for 1 minute (IEC 60255-5). The supply voltage is 24 V DC ±10%, and the output signal is an analog 0–10 V DC proportional to the measured voltage. The sensor operates over a temperature range of -40 to 85 °C (IEC 60068-2) and can be stored at -40 to 105 °C. It is designed for non-condensing humidity from 5% to 95% RH (IEC 60068-2-78) and has an ingress protection rating of IP67 (IEC 60529). Insulation resistance is at least 100 MΩ at 500 V DC (IEC 60255-5). The component weighs no more than 200 g and has compact dimensions of 30×20×10 mm, suitable for PCB mounting. Typical materials include semiconductor materials (e.g., silicon), copper conductors, and a plastic/polymer housing. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The voltage sensor operates by scaling down the high voltage present in the charging circuit to a safe, measurable level. This is achieved using a voltage divider network, which reduces the voltage proportionally. The divided voltage is then buffered and conditioned by operational amplifiers or specialized integrated circuits to produce a low-voltage analog signal that is linearly proportional to the input voltage. This signal is fed to the charging controller, which uses it to monitor the voltage level, detect overvoltage conditions, and adjust charging parameters accordingly. The sensor's design ensures accurate measurement across the specified range, with fast response for transient detection. The output signal is typically 0–10 V DC, which can be interfaced with standard control systems.
Common Materials
Semiconductor materials (e.g., silicon), Copper conductors, Plastic/Polymer housing
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measurement Range0–1000 V DCCovers typical EV and industrial battery voltages
Accuracy±0.5 % FSClass 0.5 per IEC 61869
Response Time<10 msFor fast transient detection
Isolation Voltage2500 V ACReinforced insulation for safetyIEC 61010
Supply Voltage24 ±10% V DCWide input range for industrial supplies
Output Signal0–10 V DCAnalog output proportional to measured voltage
Operating Temperature-40–85 °CExtended temperature range for automotiveIEC 60068-2
Storage Temperature-40–105 °CProtects during transport and storageIEC 60068-2
Humidity Range5–95 % RHNon-condensingIEC 60068-2-78
Ingress ProtectionIP67Dust-tight and waterproof for harsh environmentsIEC 60529
Insulation Resistance≥100 At 500 V DCIEC 60255-5
Dielectric Strength3000 V ACFor 1 minute between input and outputIEC 60255-5
Weight≤200 gLightweight for PCB mounting
Dimensions30×20×10 mmCompact footprint for space-constrained designs

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
  • Sensing Element Part
    Detects and converts voltage to measurable signal
    Material: semiconductor
  • Signal Conditioning Circuit
    Amplifies and processes the raw voltage signal
    Material: copper/PCB materials
  • Protective Housing Part
    Provides electrical insulation and mechanical protection
    Material: plastic/polymer
  • Voltage Divider Network
    Scales the high circuit voltage down to a level the conditioning stage can handle.
    Material: Precision resistors

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
accuracy: ±0.5% of reading
pressure: 0 to 1.5 bar
temperature: -40°C to +85°C
response time: <10ms
voltage range: 0 to 1000V DC
Media Compatibility
✓ Lithium-ion battery charging circuits ✓ DC fast charging stations ✓ Solar panel arrays
Unsuitable: High-voltage AC transmission lines (>1000V AC)
Sizing Data Required
  • Nominal system voltage (V)
  • Maximum expected voltage (V)
  • Required measurement accuracy (%)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Drift/Inaccuracy
Cause: Thermal stress from temperature cycling causing component aging, or contamination of sensing elements affecting electrical properties.
Complete Signal Loss/Open Circuit
Cause: Vibration-induced wire fatigue at connection points, or moisture ingress leading to corrosion and electrical discontinuity.
Maintenance Indicators
  • Erratic or fluctuating readings on monitoring systems inconsistent with process conditions
  • Audible arcing or buzzing from the sensor housing indicating internal electrical faults
Engineering Tips
  • Implement regular calibration against a certified reference standard, especially after temperature extremes or electrical disturbances
  • Ensure proper environmental sealing and vibration isolation during installation, with periodic inspection of connections and mounting integrity

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 60044-7: Instrument transformers - Part 7: Electronic voltage transformers ANSI C12.1: Code for Electricity Metering DIN EN 50160: Voltage characteristics of electricity supplied by public distribution systems

Quoted from the published standard.

Manufacturing Precision
  • Accuracy class: +/-0.5% of rated voltage
  • Temperature coefficient: +/-0.01%/°C over operating range
Quality Inspection
  • High-potential (hipot) dielectric strength test
  • Calibration verification against traceable reference standards

Manufacturers of Voltage Sensor

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

Cheemi Technology Co. Ltd.
Nanjing, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Rongtech Industry(ShangHai) Inc.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shenzhen Chuangyin Co., Ltd.
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shenzhen Deheng Technology Co., Ltd.
Shenzhen, 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 measurement range of this voltage sensor?

The measurement range is 0–1000 V DC, covering typical EV and industrial battery voltages. Always confirm the exact range for your specific model with the manufacturer.

What is the accuracy of the sensor?

The accuracy is ±0.5% of full scale, corresponding to Class 0.5 per IEC 61869. This is a reference value; verify the actual accuracy for the model you intend to use.

Can the sensor withstand harsh environmental conditions?

Yes, it has an ingress protection rating of IP67 (IEC 60529), making it dust-tight and waterproof. It operates from -40 to 85 °C and can be stored from -40 to 105 °C. Confirm these ratings with the supplier for your application.

What output signal does the sensor provide?

The sensor provides an analog output signal of 0–10 V DC, proportional to the measured voltage. This signal can be interfaced with standard control systems. Check the output specifications with the manufacturer.

Data Basis

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

Preliminary Technical Classification
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