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Power & Energy

7 Posts authored by: Jan Cumps Top Member
I'm reviewing a Gallium Nitrate step-down converter for Point of Load (PoL) high power conversion. In this post, I'm checking the sub-circuit that can inject an 8 A load pulse into the converter output. The injected load is steep and allows you to evaluate the response of the design to fast current demand rise and fall. For an explanation of the main DC converter, check the links at the end of this post.   The converter is designed to deliver high current, up to 50 A, at point of load. ...
The TI LED BoosterPack has some interesting power devices. There's a Buck converter, a low drop linear regulator, a few Boost converters with power MOSFETs. The board also has 8 RGB power LEDs and current sensing circuits. Enough interesting electronics to investigate. In this first post, an overview   History  This is one of the lesser known BoosterPacks. It's marketed for the C2000 family, although it can be used by any 3.3 V development board. The only requirements are PWM and ...
I'm reviewing a Gallium Nitrate step-down converter for Point of Load (PoL) high power conversion. This design is intended to deliver low voltage (0.5 - 1.5V) at a power hungry point of load. It can source 50A. With a switching frequency of 600 kHz, the footprint can stay small.   Part 1 gives a high-level overview of the design. The converter is interesting for more reasons than just being GaN. There are a few advanced switch-mode conversion patterns used in the evaluation kit. One ...
I'm reviewing a Gallium Nitrate step-down converter for Point of Load (PoL) high power conversion     This design is intended to deliver low voltage (0.5 - 1.5V) at a power hungry point of load. It can source 50A. With a switching frequency of 600 kHz, the footprint can stay small.     A 48V DC power bus is common in industrial environments. That voltage often needs to be converted to other levels. For high-performance processors, FPGAs and application specific ICs, this ...
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I'm reviewing an evaluation board for the TPS54A20 DC/DC converter from TI. This switcher is specific for low voltage designs. The output range is 0.5 - 2 V. That's a very narrow range. In that range it can deliver 10 A, with a typical input of 12 V.     Let's dig a little deeper into the "Two-phase, Synchronous Series Capacitor Buck Converter" design.     Series Capacitor Step-Down Converter The Buck converter uses a series capacitor to help stepping down the input vol ...
I received an evaluation board for the TPS54A20 DC/DC converter from TI. This switcher is specific for low voltage designs. The output range is 0.5 - 2 V. That's a very narrow range. In that range it can deliver 10 A, with a typical input of 12 V. Efficiency is in the lower-to-mid 80%. With a switch frequency of 2 MHz (more on that later) it allows for small passive components and a condensed footprint of the whole stepdown module.   The reason that I want to review this particular c ...