(editor’s note: Intrigued by these power electronics problems? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the power electronics forum thread.) Relationship between Q factor and the coupling factor of two wireless coils – I am testing […]
Power Components
What is a charge pump and why is it useful? (Part 1)
It’s a very common challenge in circuits to need to convert an available DC source to a lower or higher voltage. For the high-to-low conversion, one option to use a low dropout regulator (LDO), but how to easily transform a lower voltage into a higher one? For AC voltages, the answer is well-known: use a […]
LED driver ICs offer 1W of power savings in LED boost circuit
Peregrine Semiconductor Corp., a Murata company, announces Arctic Sand’s new product family—the ARC3C family of LED driver ICs. The ARC3C product line targets the fast growing, ultra-high-definition (UHD) LCD displays market for notebook computers, Ultrabooks and 2-in-1 convertibles. The products deliver dramatic improvements in power conversion efficiency, while achieving the lowest “z” height profile and smallest […]
2-W fusable wire-wound power resistors save PCB space
TT Electronics, a global provider of engineered electronics for performance critical applications, today launched its ULWP2R range of fusible wirewound resistors. By combining the functions of a fuse and a line input resistor in a single, vertical radial formed component the resistors save valuable PCB space. The UL recognised, 2W rated power resistors are aimed […]
Low-profile SMD capacitors handle 900 V
TDK Corporation has extended the CeraLink™ series with two low-profile (LP) types designed for a rated voltage of 900 V DC. The SMT capacitors have a capacitance of 0.25 µF and feature different terminations: the B58031I9254M062 type with L-style termination has dimensions of 10.84 mm x 7.85 mm x 4 mm, while the B58031U9254M062 with J-style termination measures only 7.14 mm […]
Transparent silver could advance touchscreen technology
Fans of the sci-fi franchise Star Trek may recall a scene in the 1986 film Star Trek IV: The Voyage Home that mentions a make-believe material called transparent aluminum. A real-world version of it eventually emerged from Oxford University where researchers created a ceramic alloy (officially called Aluminum Oxynitride or ALON) by fusing aluminum, oxygen […]
Safety-Rated Wireless Foot Switches
Steute Industrial Controls has introduced Wireless Safety Foot Switches that send highly-noise immune wireless signals to matched receivers. Bidirectional communications over 32 channels in the worldwide-accepted 2.4 GHz frequency band insures robust reliability. Meets Performance Level PL d in accordance with IEC 62061 SIL 2. Features: Maximum nominal transmission range: 15 m Frequency-hopping communications for […]
2.0A, 2.5A and 3.0A power switches optimized for USB port protection
Featuring an ultra-low on resistance to reduce power losses, the AP22811 and AP22804/AP22814 power switches introduced by Diodes Incorporated are optimized for universal serial bus (USB) and other hot-swap applications. Supporting load currents of 2.0A, 2.5A and 3.0A, respectively, this family of devices protects USB ports against over-current, short-circuit and over-temperature conditions and prevents system […]
Smart transformer selector interacts with STM eDesignSuite
Wurth Elektronik announces the interaction of their Smart Transformer Selector (STS) with STMicroelectronics’ eDesignSuite. The STS is an online tool available to users for searching and selecting flyback transformers. “For the first time, there’s a design suite that can generate an entire BOM where all components can be purchased off the shelf, including the transformer. Wurth […]
Electrolytic capacitors targets mission-critical circuitry
Cornell Dubilier Electronics, Inc. (CDE) has introduced a new line of axial-lead aluminum electrolytic capacitors for applications which require very high-performance under all operating conditions. The AXLH is a uniquely-designed axial-lead electrolytic that has the performance characteristics required for mission-critical circuitry. Continuous ripple current is rated at up to 28 amps RMS. With a load […]