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Improving Sound Quality through Gallium Nitride (GaN) Technology

The Rapid Advancement of Power Electronics: Embracing GaN for Unmatched Performance With evolving requirements and applications, modern power electronics are surpassing the capabilities of traditional silicon devices. As manufacturing techniques for wide bandgap (WBG) materials continue to advance, commercial WBG devices like Gallium Nitride (GaN) are becoming increasingly accessible. Designers are now exploring a wide […]

Why IGBTs are suitable for chopper applications.

Chopper is a power conversion technique in electric power control, which essentially involves pulse-width modulation of direct current. Its waveform resembles a chopping action, hence the name "chopper."

Introducing Advanced Energy’s New AC/DC Onboard Converters: Simplified Operation and Reliable Performance

Advanced Energy, a global leader in highly engineered power conversion, measurement, and control solutions (NASDAQ: AEIS), has introduced a new AC/DC converter under its Artesyn brand, further expanding AE’s influence in the industrial, robotics, and 5G telecommunications markets. This innovative converter, known as AIF42, reduces system size, achieves best-in-class conversion efficiency of up to 93%, […]

Mitsubishi Electric has started offering SiC-MOSFET modules with integrated SBD.

Mitsubishi Electric announced that it will begin offering samples of a new SiC-MOSFET module with integrated SBD starting on May 31. This half-bridge module has a rated voltage of 3.3kV and an insulation withstand voltage of 6.0kVrms. It will contribute to providing higher power density, higher efficiency, and reliability for railway, power system, and large-scale […]

Infineon introduces the next generation of dual-channel isolated gate driver ICs.

A 3.3 kW switched-mode power supplies (SMPS) can achieve power densities of 100 W/inch3 by utilizing the latest technologies, including superjunction (SJ silicon) and silicon carbide (SiC) power MOSFETs in the totem-pole PFC stage as well as gallium nitride (GaN) power switches for high-voltage DC-DC stage operation. Digital control of the PFC and DC-DC stages is essential for maximum efficiency […]

Clamp circuit in IGBT drive circuit

Clamping circuits are sometimes used in IGBT drive circuits. The main purpose is to protect IGBT devices and prevent operating parameters from exceeding the limit parameters of the collector or gate. Today we summarize the precautions for the design and use of Vce and Vge clamping circuits. Vce clamp circuit The purpose of the Vce […]

Exploring the Working Principles of Linear and Switch-Mode Voltage Regulators

According to the operation mode of the control transistor, voltage regulators are commonly classified into two types: linear voltage regulators and switch-mode voltage regulators. A linear voltage regulator is a voltage regulator that operates in a linear state using a control transistor. On the other hand, switch-mode voltage regulators work differently. In switch-mode power supplies, […]

Infineon Silicon Carbide MOSFET Technology

Infineon is one of the earliest manufacturers to explore silicon carbide (SiC) materials, with a 20-year history of mass-producing SiC devices. They offer a range of products including SiC diodes, SiC MOSFETs, and SiC modules. During the process of transitioning from SiC material to SiC power semiconductors, reliability issues with the gate oxide layer inevitably […]

How to perform small current/high impedance measurements

       Current meters are used to measure electric current and the readings are given in amperes (A). There are two types of current meter structures: shunt-type current meters and feedback-type current meters. Shunt-Type and Feedback-Type Current Meters Shunt-type current meters are commonly used and applied in many situations. Feedback-type ammeters are more suitable […]

Semiconductor Power Devices: A Comparison of Thyristors and IGBTs

Thyristor, also known as a silicon-controlled rectifier (SCR), is a semiconductor device used for high-power applications. It features three pn junctions and a 4-layer structure. Typically, two thyristors are connected in reverse parallel. The thyristor serves not only as a rectifier but also as a non-contact switch for fast circuit connection or disconnection. It enables […]

Unveiling the Marvels of Amplifiers: Exploring the Intricate World of Operational Amplifiers (Op-Amps)

  Amplifier is an extraordinary electronic component that can amplify input voltage by thousands of times. It is commonly known as an operational amplifier or op-amp, initially used for analog computation circuits involving addition, subtraction, differentiation, and integration. This is its circuit symbol (Figure 1). While the circuit symbol appears simple, its internal structure is […]

The IGBT: The CPU of the Electronic Power Industry

There is a small device that is rarely heard of in everyday life, but is indispensable in almost any place with electricity – the IGBT, the CPU of the electronic power industry. From consumer electronics, such as the Bluetooth headphones we use, laptop power adapters, and household frequency converters, to the frequency converters in elevators, […]

CEVA Acquires Spatial Audio Business from VisiSonics to Expand its Application Software Portfolio for Embedded Systems targeting Hearables and other Consumer IoT Markets

ROCKVILLE, MD., May 10, 2023 – CEVA, Inc. (NASDAQ: CEVA), the leading licensor of wireless connectivity and smart sensing technologies and custom SoC solutions, today announced the acquisition of the RealSpace® 3D Spatial Audio business, technology and patents from VisiSonics Corporation. Based in Maryland, close to CEVA’s sensor fusion R&D development center, the VisiSonics spatial audio R&D team and […]

Rohde & Schwarz Interactivity Test solution enables new ITU network performance evaluation recommendation

The International Telecommunication Union (ITU) has approved the Interactivity Test from Rohde & Schwarz as a test methodology. When compared to standard testing methods, the Interactivity Test provides a more accurate and comprehensive assessment of network performance for real-time and interactive applications. Mobile network operators who adopt the Interactivity Test can trust that Rohde & […]

Pasternack Announces New Test and Measurement Antennas Covering Frequencies from 2.6 to 12.4 GHz

IRVINE, Calif. – Pasternack, an Infinite Electronics brand and a leading provider of RF, microwave and millimeter-wave products, has announced the launch of a new line of test and measurement antennas. They address a variety of applications, including antenna measurements, lab usage and microwave radio systems. These new test and measurement antennas offer frequency ranges of […]