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CQ36 series

Coreless Current Sensor with ΣΔ Digital Output - Optimized for AC Servo Amplifiers and Robots

Significantly Reduces Heat Generation and Contributes to System Miniaturization

CQ36 series CQ36 series

Overview

  • Digital ΣΔ output
  • Low resistance
  • Low noise

The CQ36 contributes to: 

  • System miniaturization
  • Low heat generation
  • Precise torque control of robots

The CQ36 series has a built-in ΣΔ modulator that can replace both shunt resistor + isolated ADC a single component.

It is highly compatible with AC servo amplifiers and robots while contributing to system miniaturization.

Features

1. System downsizing

The current sensor and ΣΔ modulator are integrated into a single package. 

System downsizing can be achieved by omitting the necessary parts required for the conventional solution with a shunt resistor and an isolated ADC. 

No isolated power supply is required on the high-voltage side.

2. Low heat generation

AKM has developed a unique package to achieve a low primary conductor resistance of 0.27mΩ.

Compared to shunt resistors, this reduces heat generation, making thermal design easier.

3. Precise Torque control for AC servo amplifiers and robots

A low noise performance is achieved by leveraging the high sensitivity of compound Hall elements. This contributes to the precise torque control required for AC servo amplifiers and robots.

Applications

  • AC Servo amplifiers
  • Multi-axis robots
  • Collaborative Robots
  • Well-suited for applications requiring isolation, reduced heat generation, and system miniaturization.
    (Example: Suitable as a replacement for shunt + isolated ADC configurations.)

Product Information

CQ36 Series Block Diagram CQ36 Series Block Diagram

Example of replacement for shunt + isolated ADC

Example of replacement for shunt + isolated ADC

FAQ

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Quality Data

The AKM Group prepares quality data.

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Certified with safety standards

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Design Support

You can use useful simulation or calculation tools for your design.Please note that you are required to register your information when using some of those tools.

Series lineup

 

Supply
Voltage
 Output
Voltage
 Effective
Current
 Measurement
Range
 Bipolar /
Unipolar		 Ratiometric/
Non-Ratiometric		 Creepage
Clearance
 Working
Voltage *
 Product
Series		 Part
Status
(V) (V) (Arms) (Apeak) (mm) (Vrms)
5.0 5.0 100 ± 115 to ± 225 Bipolar Retiometric ≧ 8.0 1118 CZ375 Series MP
60 ± 5.3 to ± 180
 CZ370 Series
CZ372 Series		 MP
0 to 345.2 Unipolar
3.0 50 ± 11.6 to ± 166.6 Bipolar Non-Ratiometric CZ3A Series MP
3.3 3.3 ± 12.9 to ± 129.1

* Pollution Degree II with basic insulation

Inquiries about Current Sensors

For any inquiries regarding products, samples, technology, consultations, estimates, or purchases, please feel free to contact us.

Contact AKM