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Using op amps to reduce near-field EMI on PCBs. Part 2
As shown in previous sections, active filtering and CMRR can reliably reduce circuit noise in the device’s band-limited range, including DM and CM EMI up into the MHz range. However, exposure to RFI noise above the intended operating frequency range may cause non-linear behavior in the device...
STMicroelectronics Introduces Automotive Power MOSFETs in Tiny 5x6mm Dual-Side Cooling Package
01.06.2017 · News
STMicroelectronics has introduced new MOSFET devices in the advanced PowerFLAT 5×6 dual-side cooling package, enabling increased power density in automotive Electronic Control Units...
Using op amps to reduce near-field EMI on PCBs. Part 1
01.06.2017 · Articles
Automotive, industrial, medical, and many other applications use sensitive analog circuits that must perform their function while remaining immune to noise disturbances in their local environment. Many of these disturbances occur on nearby “noisy” circuits located on the same printed circuit board, while other interference can be picked up by cable interfaces that couple noise onto the PCB and its circuits...
TI introduces the industry's smallest gate driver and power MOSFET solution for motor control
01.06.2017 · News
Texas Instruments introduced two new device families that help reduce size and weight in motor drive applications. When used together, DRV832x brushless DC (BLDC) gate drivers and CSD88584/99 NexFET™ Power Blocks require as little as 511 mm2, half the board space of competing solutions...
Resistor compensates for instrumentation-amp gain drift
31.05.2017 · Circuits
Some instrumentation amplifiers use external resistors to set their gain. Unfortunately, the lack of temperature-coefficient matching between the external and the internal resistors results in a high gain drift. If, however, another on-chip resistor is available, you can use it to compensate for gain drift as a result of temperature...
ON Semiconductor's Advanced Synchronous Rectifier Controller Brings Best-In-Class Simplicity, Reliability and Efficiency to LLC-based Power Supply Designs
30.05.2017 · News
ON Semiconductor has introduced an advanced synchronous rectifier controller optimized for LLC resonant converter topologies. The FAN6248 requires minimal additional components, delivers high efficiency, eases thermal management, improves overall system reliability, and simplifies the design of LLC power supplies...
High-side current-sensing switched-mode regulator provides constant-current LED drive
29.05.2017 · Circuits
Many suitable circuits exist for driving LEDs in constant-current mode and from low-voltage sources. For example, references 1, and 2 show circuits that use switched-mode-regulator ICs and low-voltage sources to supply LED current...
1200V Silicon-Carbide Diodes from STMicroelectronics Deliver Superior Efficiency and State-of-the-Art Robustness
29.05.2017 · News
A full range of 2 A-40 A 1200 V silicon-carbide JBS diodes from STMicroelectronics enables a wider range of applications to benefit from the high switching efficiency, fast recovery, and consistent temperature characteristics of SiC technology...
IDT Introduces Family of SPDT Reflective RF Switches with Wide Frequency Range, Low Distortion, and Low Insertion Loss
26.05.2017 · News
Integrated Device Technology (IDT) introduced a new family of high-performance single-pole, double throw reflective (SPDTR) RF switches in compact 2 mm × 2 mm packages. The F2972 and F2976 operate from 5 MHz to 10 GHz, offering an industry-leading mix of low-insertion loss...