OFweek Mall Supplies A Cost-Effective Current Transducer

Current transducers are mainly used to measure the magnitude of current in a circuit. They are an important part of modern electrical systems. They can provide accurate current measurement and achieve efficient power monitoring. They are widely used in industrial automation, renewable energy, electric vehicle charging, and power quality monitoring.

OFweek Mall is a large online electronic component mall. We supply hundreds of high-quality current transducers for you to choose from.

The following content will give you a detailed introduction to the types of current sensors supplied by OFweek.

What Types of Current Transducers Does OFweek Supply?

Hall Effect Current Transducers

We currently offer CSN Series, TBC-LTHB, CSLS Series, CSCA-A Series, TKC-TG3, TKC-KDRA Series, and a variety of Hall effect current transducers under the Cr Magnetics brand. Each one comes with a detailed specification sheet.

Split Core Current Transducers

14 Cr Magnetics split core current sensors for you to choose from.

Average RMS Current Transducer

A variety of CR4480, CR4470, CR4460, CR4450, CR4420, CR4411, and CR4410 series average RMS AC current Transducers. All supplied by original brand merchants of reliable quality.

Self-powered Current Transducer

We supply CR4211S, CR4210S, and CR4210 low-cost self-powered AC current transducers.

True RMS Current Transducer

A variety of Cr Magnetics brand true RMS AC current transducers for you to choose from. Including CR4180, CR4170, CR4160, CR4150, CR4120, CR4111, CR4110 series, etc.

The above are the types and models of current transducers supplied by OFweek. If there are any models you are interested in, please visit our official website. It is also worth mentioning that all our current sensors are sold directly by the original manufacturers, the price is very affordable, and they support 30 days return and exchange.

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What Is A Voltage Transducer?

 A voltage transducer is a device used to measure the voltage value in a circuit. It can convert the voltage signal to be detected into a signal (such as current, voltage, or frequency) that has a certain relationship with it and is easy to measure and process according to a specific ratio, thereby enabling accurate voltage monitoring.

It is widely used in industrial automation, power systems, electronic equipment testing, new energy vehicles, and other fields.

What are the main categories of voltage transducers?

There are many types of voltage transducers. The following is divided according to the measured voltage type, sensing technology, and output signal type.

Division of measured voltage type

According to the measurement of different voltage types, it can be divided into DC voltage transducers, commonly used in battery systems, solar energy, and electric vehicles, and AC voltage transducers, used in power grids, industrial equipment, and household appliances.

According to sensing technology

Hall effect voltage transducer

The magnetic field generated by the current/voltage is detected by the Hall effect. The strength of the magnetic field is proportional to the Hall voltage, thereby outputting a voltage signal. It is widely used in industrial automation, power systems, and other fields. For example, the CR5220 DC Hall Effect current transducer is a good choice.

Electromagnetic voltage transducer

Mainly converts high voltage into low voltage through the law of electromagnetic induction, and is only suitable for detecting AC voltage. Mainly used for voltage monitoring and protection in power systems.

Resistive voltage transducer

Resistive voltage transducer is based on physical quantities (such as voltage, current, temperature, etc.), causing resistance changes, thereby detecting voltage through resistance changes and converting them into electrical signals.

Capacitive voltage transducer

Using capacitive coupling technology, voltage can be detected without direct contact (especially for high-voltage AC). It is mostly used in high-voltage lines and smart grid systems.

According to the output signal type

Analog voltage transducer

Analog voltage transducers sense voltage changes through sensing elements and convert them into proportional analog voltage or current signal outputs, which are suitable for power systems, industrial automation, and other fields.

Digital voltage transducer

Through the built-in analog-to-digital conversion (ADC) circuit, the analog voltage signal is converted into digital code (such as binary data) for accurate processing by microprocessors or digital systems.

OFweek supplies a wide variety of Voltage Transducers online

The above is a basic classification introduction to voltage transducers. If you want to learn more or buy wholesale voltage transducers, you can visit OFweek Mall, where there are hundreds of voltage transducers with complete specifications and different brands for you to choose from.

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What You Need to Know About Hall Effect Current Transducer?

Hall effect current transducers are usually composed of Hall elements (a semiconductor material), magnetic circuits, and signal conditioning circuits. There are two main types of Hall effect current transducers: open-loop and closed-loop. They are widely used in power monitoring, motor control, and circuit protection.

Principle of Hall Effect

The Hall effect is a physical phenomenon caused by the interaction between current and magnetic field. When current passes through a conductor perpendicular to an external magnetic field, a potential difference, namely the Hall voltage, is generated in the direction perpendicular to the current and magnetic field. The voltage is proportional to the current flowing through. Therefore, the current data can be obtained by measuring the voltage.

Advantages of Hall Effect Current Transducers

High Precision and Stability

Hall effect current transducers are known for their high precision, with a basic accuracy of up to 1.0%. And some Hall effect current transducers have their automatic calibration function, which improves the accuracy. For example, the CSCA-A Series open-loop current transducers have their offset calibration.

High Safety

Hall effect current transducers use non-contact induction to measure current, which greatly increases the safety and convenience of detection.

Low Power Consumption

Hall current transducers do not need to directly contact the current-carrying conductor during measurement (especially in open-loop design), so they do not consume energy from the measurement circuit.

Compact Size

Hall effect current transducers use advanced integrated design to highly integrate Hall elements with signal processing circuits, reduce the number and volume of external components, and achieve the characteristics of compact size and easy installation.

Disadvantages of Hall Effect Current Transducers

Susceptible to External Magnetic Field Interference

Hall current transducers are magnetic induction products, which are easily disturbed by strong magnetic fields, affecting the accuracy of measuring output current. Therefore, magnetic field interference in the surrounding environment should be avoided when using them.

High Cost

Closed-loop Hall effect current transducers are more expensive than open-loop current transducers due to their complex structure and high precision.

The above content is a detailed introduction to the principle of the Hall effect and the advantages and disadvantages of Hall effect current transducers. If you want to find a current sensor with a full range of specifications, welcome to OFweek Mall, where there are hundreds of current transducers for you to choose from, supplied by original manufacturers and sold at wholesale prices.

OFweek looks forward to your arrival!

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What Are the Main Types of Current Sensors?

Current sensors mainly use the principles of electromagnetic induction and the Hall effect to detect and measure the current flowing through a conductor and convert it into a corresponding proportional output signal (such as voltage, current, or digital signal).

The following are common types of current sensors:

Resistor Shunt

The resistor shunt connects a precision low-resistance shunt resistor in series with the current path. When current passes through, according to Ohm's law, V = IR. The voltage is proportional to the current. By measuring the voltage value, the magnitude of the current can be known. The advantages of the resistor shunt include high accuracy, fast response speed, low cost, and ease of use. However, its disadvantage is that the device itself does not have an electrical isolation function and is not suitable for measuring large currents and high-frequency alternating currents.

Current Transformer

A current transformer is a device that works on the principle of electromagnetic induction. It can convert a large current on one side into a small current on the other side for current measurement and protection. The primary winding of the current transformer has a small number of turns and a thick wire diameter. It needs to be connected in series in the circuit of the current to be measured, and the secondary side cannot be open. The advantage of the current transformer is that it has an electrical isolation function, but the disadvantage is that it can only be used to measure alternating current.

Hall Effect Current Sensor

The Hall current sensor is a device that uses the hall effect to measure current. Its working principle is to detect the magnetic field generated when current flows through a conductor, and then convert the magnetic field into a voltage signal proportional to the current. It includes open-loop Hall current sensors and closed-loop hall current sensors.

Open-loop Hall Effect Current Sensor

The primary current is measured through the magnetic field in the toroidal core, and the output is amplified and output. The output voltage is proportional to the primary current. The CSLS Series is a good miniature Hall effect linear open-loop current sensor.

Closed-loop Hall Effect Current Sensor

After amplifying the output voltage of the Hall device, the magnetic field generated by the compensation coil is offset by the magnetic field generated by the measured current, so that the Hall device works in a zero flux state.

Fluxgate Current Sensor

The working principle of the fluxgate current sensor is based on the law of electromagnetic induction, and the current size is indirectly measured by detecting the change in the magnetic field generated by the current. It has the characteristics of high sensitivity, good linearity, and strong anti-interference ability.

Rogowski Coil Current Transformer

The Rogowski coil, also known as the magnetic potential meter, is based on Faraday's law of electromagnetic induction, and detects the magnetic field generated by the current change and converts it into a voltage signal. It supports high-precision, wide-band current measurement, and is particularly suitable for high current and pulse current scenarios.

OFweek Mall supplies current and voltage sensors with complete specifications. Hall effect current sensors, current transformers, and power sensors are all available at wholesale prices. Welcome to the store to consult!

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Digital Audio Amplifier Purchase Guide?

Digital audio amplifiers utilize pulse-width modulation (PWM) to modulate audio signals, effectively amplifying them by varying the pulse width of high-frequency signals. They are popular for their small size and low power consumption and are important components of portable audio devices such as mobile phones and bluetooth speakers.

The following content will focus on the classification and application range of digital audio amplifiers, focusing on parameter specifications. Help users save time in purchasing and quickly determine their goals.

Classification of Digital Audio Amplifiers

As a beginner, you should first fully understand the basic classification of digital audio amplifiers before you start buying digital audio power amplifiers. This will help you quickly clarify your purchase goals.

Classification by Circuit Topology

Class D Digital Audio Amplifiers

They use high-speed switches (PWM or PDM) to achieve efficient power conversion. The efficiency can be as high as 90% or more, with low heat generation and compact design. They are primarily used in smart home devices, including home audio, Bluetooth speakers, TVs, and car amplifiers.

Class T Audio Amplifiers

It is an enhanced version of the Class D amplifier, equipped with digital signal processing (DSP) technology, and better sound quality. It is primarily used in high-fidelity compact audio systems that require high sound quality.

Hybrid Class D Audio Amplifier

Combines digital switching with analog or DSP input stages to balance the advantages of different amplification technologies, thereby providing high efficiency and specific sound quality. It is often used in musical instruments, smart speakers, smart home audio, etc.

Divided by Output Channel Configuration

Mono (1.0 channel) digital amplifiers are designed to drive subwoofers or mono audio applications.

Stereo (2.0 channel) digital amplifiers are suitable for music players, TV speakers, or desktop speaker devices.

Multi-channel digital amplifiers: Immersive audio is achieved through multiple speaker outputs for surround sound and home theater systems.

Clarify the Specifications of The Digital Audio Amplifier You Need

Understanding the basic classification of digital audio amplifiers will help you quickly narrow down your screening range. Next, you need to clarify the specifications of the amplifier you need: power output, signal-to-noise ratio (SNR), and total harmonic distortion (THD).

Power output: It is the key factor in driving speakers. The power output of the amplifier must be matched with the power capacity of the speaker.

Signal-to-Noise Ratio (SNR): It reflects the strength of the signal relative to the background noise, measured in decibels (dB). A higher SNR means a cleaner and more pleasant sound. An SNR of 90 dB or higher can achieve high-fidelity sound.

Total Harmonic Distortion (THD): The lower the THD, the closer the sound is to the original recording. To ensure the purity of the sound transmitted through the speaker, we must choose an amplifier with a THD value as low as 0.1% as possible.

The above content is a detailed introduction to the classification of digital audio amplifiers. I hope it can help you quickly lock in your target when purchasing an audio amplifier.

OFweek supplies a variety of audio amplifiers, each with a detailed DataSheet, and we look forward to your visit.

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OFweek Mall Supplies a Wide Variety of Class D Audio Amplifiers

Class D audio amplifier mainly uses pulse width modulation (PWM) technology to achieve high-efficiency audio signal amplification through switching devices.

Features of Class D Audio Amplifier

High efficiency

Because class D audio amplifiers work in switching mode, they can efficiently control the output without consuming a lot of power in the amplifier circuit. The working efficiency can usually reach 90% or more.

Compact size

Due to their high efficiency, class D audio amplifiers almost completely avoid wasting electricity in the form of heat, thereby reducing the need for components such as heat sinks. Secondly, most audio amplifiers utilize compact filters and integrated designs to minimize the overall size of class D audio amplifiers.

Good sound effect

The switching frequency of class D amplifiers is usually between tens of kHz and hundreds of kHz, which is much higher than the frequency range audible to the human ear. Therefore, the noise level of class D amplifiers is low and the impact on sound quality is small.

As people's demand for various electronic devices gradually increases, class D audio amplifiers are widely used in smart home electronic devices, car audio systems, and various portable audio devices.

OFweek specializes in supplying all kinds of class D audio amplifiers

If you are a manufacturer of electronic equipment and need a large number of audio amplifiers. Then you must learn about the audio amplifiers supplied by OFweek Mall. There is a full range of high-quality Korea digital power amplifiers for you to choose from.

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What Does an Airflow Sensor Do?

The airflow sensor is a device that collects and measures the air flow rate in a pipeline or system in real time. Its function is to provide accurate and reliable flow information, supporting industrial production, medical equipment, and environmental protection facilities, thereby ensuring the stability and safety of airflow in various scenarios, including chemical and medical applications.

The following content will introduce the importance of airflow sensors according to different application scenarios.

Manufacturing

In the production and manufacturing process of many products, it is necessary to accurately monitor the airflow (such as nitrogen, ammonia, inert gas, etc.) in real-time to achieve the safety of industrial automated production, improve production efficiency, and reduce losses.

Thermal mass flow sensor is one of them. It is used to accurately measure gases such as argon, nitrogen, and oxygen in the steel production process. In the papermaking process, a thermal mass flow sensor is used to monitor and control dry airflow to ensure papermaking quality.

Medical Field

Air flow sensors are widely used in various medical equipment and respiratory systems. In ventilators and anesthesia machines, high-precision air flow meters can be used to measure and adjust the airflow in real time to ensure that the patient's breathing volume and anesthetic concentration are in the best state. In addition, in other medical devices such as infusion pumps, nebulizers, etc., high-precision air flow sensors are also essential components to ensure accurate liquid flow in intravenous drips. PMF5000 series medical mass air flow sensor is a component that is professionally applied to various medical devices.

Environmental Monitoring

Air flow sensors are essential tools in environmental monitoring and can be used to measure and track airflow in various environments. In the process of air pollution monitoring, they are used to detect the concentration of atmospheric pollutants such as sulfur dioxide, nitrogen oxides, ozone, and particulate matter, to achieve early warning and pollution source tracking, and assist in the formulation of environmental protection policies.

OFweek Mall supplies various brands of high-quality air flow sensors, sold at wholesale prices, and supports 30-day returns and exchanges. There are a full range of models. If you are still worried about not being able to find a good airflow sensor supplier, you are welcome to visit OFweek.

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