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About AKM
What makes AKM different ?
Current Sensors
The reason why AKM's current sensors are chosen is that they can solve customers' problems over a wide range of applications!
AKM's current sensors can solve customers' problems over a wide range of applications for the following four reasons.
- Produce high-performance products with high technological capabilities
- Superior characteristics than other current detection methods
- Extensive track records over a wide range of applications
- Enhanced support tools
Produce high-performance products with high technological capabilities
AKM has advanced technologies in all three elemental technologies used in the current sensors.
The following are the elemental technologies owned by AKM and the features of current sensors that AKM has developed.
AKM's three elemental technologies
Hall Sensor
Highly Sensitive Hall element InAs
- AKM's Unique Compound Semiconductor Technology
- Approximately 30 times Higher Sensitivity than Si Hall element
Package
Packaging technology
- Low heat generation and high current capability by utilizing high-sensitivity Hall elements
- Patented high isolation construction
ASIC
Circuit design technology
- Wide signal bandwidth using high-sensitivity Hall elements
- Advanced temperature compensation technology
Six Features of the AKM Current Sensor
1. Low heat generation
- Since Currentier can detect even small magnetic fields, the cross-sectional area of the primary conductor can be made larger, allowing for lower resistance.
2. Wide measuring current range
- Its high resolution enables measurement of small currents.
- Its low heat generation allows measurement of high currents.
3. High speed response
- High-sensitivity Hall element makes it possible to reduce the gain of ICs and achieve high speed response
4. High isolation
- Its patented unique insulation structure physically insulates the primary and secondary sides.
5. High resolution and high accuracy
- Highly sensitive Hall element for high resolution
- High accuracy thermal compensation with ASIC
6. Surface Mounting and Low Profile
- Compact surface area package
- Low profile due to the absence of core material
In addition, we have obtained UL62368-1 for safety standards of the components. It also complies with isolation properties which are defined in UL61800-5-1, making it highly versatile and safe to use.
Superior characteristics than other current detection methods
For users having problems with shunt resistors
- Heat generation becomes a concern...
- High isolation power takes up a lot of space...
- Difficulty in designing thermal or high isolation...
For users having problems with cored current sensors
- Unable to reduce the height..
- Magnetic hysteresis-induced zero current output voltage errors become a concern...
- High accuracy means a high price and high current consumption...
For users having problems with other Coreless current sensors
- Heat generation is a concern, large currents cannot be measured…
- Poor accuracy, high noise...
- Slow response time...
- Current measurement range is narrow...
For users having problems with ACCT (Current Transformer)
- I want to measure DC current...
- Cannot be miniaturized...
- Measurement accuracy is poor...
Currentier can measure both AC and DC currents with high accuracy.
Realizes system miniaturization
Improved system efficiency and more refined control
Learn more about solutions provided by using Currentier
Extensive track records over a wide range of applications
Robot controller
"The low heat generation eliminates the need for fans and heat sinks."
→ Currentier can reduce the size of the system due to its low heat generation.
It is ideal for robot controllers where heat generation is a concern.
Charging station
”We are very pleased that the low profile and surface mount design of Currentier allows us to position in any location, whereas other companies' products are too tall for us."
→ Currentier can be positioned anywhere due to its surface-mount and low profile features.
It is ideal for applications in limited space such as charging stations.
Switching Power Supplies / Next Generation Power Devices
"The response time of other companies' products was not fast enough, so I appreciate Currentier's fast response time of less than 1μsec."
→ Currentier can contribute to system miniaturization because of its fast response time, which makes it possible to reduce the size of peripheral components.
It is ideal for applications that require quick response, such as switching power supplies and next-generation power device (SiC/GaN) protection.
Packaged Air Conditioner (PAC)
”The Currentier can measure high currents at high speeds, making designing easy."
→ Currentier can detect currents that exceed 100A peaks at high speed.
It is ideal for applications such as packaged air conditioners that require high current measurement.
AC servo
"It is difficult to control the system precisely when using other companies' products due to the inaccuracy of zero current voltage, but with Curretier's accuracy, precise control is possible."
→ Currentier allows more refined control of the system due to its high accuracy.
It is ideal for applications such as AC servos that require precision.
General inverter (drives)
"When we developed the entire model lineup, we needed only one product line of Currentier, whereas other companies' products would have required several companies and several series."
→ Currentier can cover a variety of capacity bands in the same package, reducing design man-hours.
It is ideal for applications involving many lineups such as general-purpose inverters.
Examine installation examples in detail.
Enhanced support tools
Simulation allows easy comparison of performance with current methods!
Extensive product pages make it easy to search for products and download documentation!
Many calculation tools are available to help you design your product!
Asahi Kasei Group's Initiative towards Carbon Neutrality:
AKM's Current Sensor
This article explains efforts to reduce greenhouse gas emissions through the use of AKM's Currentier technology in inverter air conditioners.
