The ModCap UHP (B25648A) series from TDK Corporation is a DC link capacitor family for SiC-based power inverters, supporting 1350 V to 1800 V DC ratings, 470 µF to 880 µF capacitance and 8 nH ESL with continuous operation at hotspot temperatures up to +105 °C without derating. The design uses a high-temperature dielectric and […]
Power Components
Ultraviolet laser diode delivers 1.0 W output at 379 nm
Nuvoton Technology has started mass production of the KLC330FL01WW, a 379 nm ultraviolet semiconductor laser delivering 1.0 W optical output in a TO-9 CAN package. The device combines a short UV wavelength with improved heat dissipation and extended operating lifetime, addressing the requirements of maskless lithography and other precision optical systems used in advanced semiconductor […]
Plastic TVS devices meet military qualification for aerospace protection
The JANPTX family of surface-mount transient voltage suppressor devices from Microchip Technology is qualified to MIL-PRF-19500 and provides high-reliability transient protection in non-hermetic plastic packages for aerospace and defense applications. The unidirectional TVS devices support working voltages from 5 V to 175 V, deliver up to 1.5 kW peak pulse power and clamp transients in […]
High-power chip resistors support compact automotive electronics
The RMCA automotive-grade thick film chip resistor series from Stackpole Electronics is qualified to the AEC-Q200 standard and designed for use in automotive and other high-reliability electronic applications. The series supports higher power density through -HP and -UP options that increase power handling by two to three times over standard versions while enabling more compact […]
How do different winding architectures impact transformer leakage inductance and parasitic capacitance?
When it comes to high-frequency transformer design, the careful management of parasitic elements is essential to ensure converter efficiency. Parasitic self-capacitance and leakage inductance matter when associated with switching losses, electromagnetic interference, and resonance issues in power electronics. This article examines how specific turn progressions, ranging from U-Type to Serpentine and 3D-molded sector windings, impact […]
Integrated magnetics combine transformer and inductor
A custom Smart Integrated Magnetics device from Exxelia integrates the transformer and inductor of a dual active bridge into a single magnetic assembly for isolated DC-DC conversion in space-grade power conditioning and distribution units. Designed for 1 to 2 kW operation at 100 to 200 kHz, the solution achieves close to 99% efficiency in a […]
Self-powered gate drivers eliminate bias supplies
The AHV85003/AHV85043 Power-Thru™ isolated gate driver chipset from Allegro MicroSystems expands the company’s silicon carbide gate driver portfolio for high-voltage power conversion in AI data centers, electric vehicles, and clean energy systems. The self-powered design integrates signal and power across a single isolation barrier, eliminating external isolated bias supplies, reducing common-mode capacitance by up to […]
Single-coil fan driver supports 5 – 32 V rails
Melexis introduces the MLX90411-D, an 800mA cooling fan driver that extends the MLX90411 family with enhanced customer configurability, smoother motor control, and simplified system integration. Designed for single-coil fans operating from 5 V, 12 V, 24 V, or 32 V, this innovation targets consumer systems (gaming, PC), home appliances (refrigerators), and power infrastructure (UPS, ESS). […]
How do inverter switching strategies influence battery health?
Traditionally, power converter design for energy storage systems (BESS) normally focuses on conversion efficiency and total harmonic distortion. In these designs, the battery is often modeled as a simple dc voltage source with fixed capacity and resistance. However, when it comes to high-density BESS and electric vehicle architectures, the interaction between the inverter’s switching strategy […]
750 V SiC MOSFETs target onboard chargers
Infineon Technologies AG launches new packages for the CoolSiC MOSFET 750 V G2 technology, engineered to deliver the highest system efficiency and power density in automotive and industrial power conversion applications. This latest innovation is now available in a range of packages, including Q-DPAK and D2PAK, offering a portfolio with typical RDS(on) values up to […]
