Knowles Precision Devices recently announced the release of a new 100nF capacitor within its V-Series of single-layer capacitors. The 100nF is a high frequency, wire bondable single layer capacitor, making it ideally suited for GaN and GaAs amplifier applications where small size and microwave performance are critical. V-Series single-layer capacitors, including the new 100nF, are […]
Amplifier
High-voltage bi-directional current-sense amplifiers boost power efficiency
STMicroelectronics has introduced three precision high-voltage bi-directional current-sense amplifiers that provide the extra convenience of a Shutdown pin to maximize energy savings. The TSC2010, TSC2011, and TSC2012 amplifiers also allow designers to minimize power dissipation by leveraging their precision characteristics to select low sense-resistor values. The offset voltage is within ±200µV at 25°C, with less than 5µV/°C drift, […]
High-side current-sense amps feature 12 µV maximum offset error
With the proliferation of automation and connectivity throughout the automotive and industrial markets, the need to accurately measure a dynamic current in the presence of high-frequency noise often plagues modern vehicle and factory applications. In order to combat electrically noisy environments and address the need for higher accuracy current measurement, Microchip Technology Inc. introduced its high-side current […]
Eval kit covers Class D audio amp designs
GaN Systems announces the debut and availability of a new amplifier evaluation kit for high sound quality Class-D audio systems. The evaluation kit includes a 2-channel, 200 W per channel (8 ohm) Class-D audio amplifier and companion 400 W, continuous power audio-grade SMPS. This solution highlights an easy plug and play design with features such as […]
Charge amplifiers for use with charge mode sensors in power generation apps
PCB Piezotronics, Inc., a wholly-owned subsidiary of MTS Systems Corporation, announced the release of Models 421B30, 421B31 and 421B3X, differential charge amplifiers designed for use with differential, charge mode accelerometers and pressure sensors. The products were developed for use in power generation turbine research & development and rotating asset monitoring in nuclear facilities. Key features: […]
Standard amplifier functions in HEV/EV battery management systems
by Sanjeev Manadhar, Texas Instruments Hybrid electric vehicles (HEVs) and electric vehicles (EVs) are popular because they have low (to zero) emissions and fewer maintenance requirements while offering better efficiency and drive performance. New HEV/EV companies are emerging, while existing automakers are investing more in HEV/EV to compete for market share. The heart of the […]
Power amplifier IC tackles high-density power applications with 200V and 1A continuous current
The PA164 is a high voltage operational amplifier from Apex Microtechnology and is housed in a QFP style package with a monolithic amplifier core designed for high-density power applications. The PA164 has an output voltage of 200V and provides 1A of continuous current, 4A peak. Separate supplies for the amplifier core and the output stage […]
Three-phase 600-V gate driver with smart shutdown defeats negative voltage spikes
The STMicroelectronics STDRIVE601 3-phase gate driver for 600V N-channel power MOSFETs and IGBTs provides state-of-the-art ruggedness against negative voltage spikes down to -100V and responds to logic inputs in a class-leading 85ns. Featuring smart-shutdown circuitry for fast-acting protection, the STDRIVE601 turns off the gate-driver outputs immediately after detecting overload or short-circuit, for a period determined using […]
Tiny current-sensing amps target overcurrent detection apps
Texas Instruments introduced the industry’s smallest current-sense amplifier in a leaded package and the smallest, most accurate comparators with an internal 1.2-V or 0.2-V reference. Offered in industry-leading package options, the INA185 current-sense amplifier, and open-drain TLV4021 and push-pull TLV4041 comparators enable engineers to design smaller, simpler and more integrated systems while maintaining high performance. […]
Bi-directional current sense amp targets full-scale direct motor-winding current measurements
Designers can now improve motor efficiency and reduce vibration using the MAX40056 bi-directional current sense amplifier with patented pulse-width modulation (PWM) rejection from Maxim Integrated Products, Inc. Creating a motor control system requires precise current sensing and measurement of motor winding currents. A commonly used approach is to infer winding currents by performing ground or supply […]
