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. The DRV832x BLDC gate drivers feature a smart gate-drive architecture that […]
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Top power electronics threads on EDAboard.com – April
(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 threads.) Cheap mains conducted emissions tester? – Our direct drive, 100W offline, non-isolated LED driver failed EMC […]
Video line-up: Gallium nitride semiconductors at APEC 2017
The recently concluded APEC 2017 in Tampa played host to a lot of technological developments involving GaN semiconductors. Here are a few of the demos on the exhibit floor that highlighted what these wide band gap devices can do for power circuits. In the future, your TV set may not need a power cord […]
Top power electronics threads on EDAboard.com – March
(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 […]
Single-chip gives reinforced isolated power and data up to 100 Mbps
Texas Instruments introduced a new single-chip reinforced isolator with integrated power and efficient power transfer, low radiated emissions and high immunity. This new reinforced isolator supports reliable operation of industrial systems, including factory automation, grid infrastructure, motor control, isolated power supplies, and test and measurement equipment. The ISOW7841 integrates both isolated data and power, enabling […]
Iintegrated multiphase bidirectional DC/DC current controller works with 12/48-V vehicle systems
Texas Instruments introduced the industry’s first fully integrated multiphase bidirectional DC/DC current controller, which efficiently transfers electric power greater than 500 W per phase between dual 48-V and 12-V automotive battery systems. The highly integrated LM5170-Q1 analog controller features an innovative average current-mode control method that overcomes the challenges of today’s high-component-count, full digital control […]
What are amplifier classes and their relation to power efficiency (Part 2)?
In Part 1, we looked at Class A, B, AB, C, and D amplifiers. These designations are standardized, fully defined, and widely recognized. Now we’ll look at a few other topologies which are less well known but also used. The Class G amplifier is similar to the Class AB amplifier except that is uses two […]
Top power electronics threads on EDAboard.com – February
(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.) Circuit to detect 240 or 380 V AC – I need to make a circuit that can […]
Super-compact sync buck converter on PMBus boasts gives 35-A output
Texas Instruments today introduced the industry’s highest-density, 18-V input, 35-A synchronous DC/DC buck converter, which offers full differential remote-voltage sensing and PMBus to support telemetry. TI’s TPS546C23 power converter integrates high- and low-side MOSFETs into a small-footprint package that is significantly denser than competitive devices. Designers can stack two converters in parallel to drive loads up to […]
More power IC technologies challenge design decisions
By Roger Allan, contributing writer There’s good news for power supply system designers. Silicon-based power devices are making performance advances in diode, transistor, and field-effect transistor (FET) functions. But wide-bandgap semiconductor IC technologies like gallium nitride (GaN) and silicon carbide (SiC) are poised to grow rapidly, offering designers greater performance in a smaller package, making […]
