Digitally enhanced power controllers

Power Electronics / Power Management

9 November 2016 Power Electronics / Power Management

Microchip announced the availability of a new Digitally Enhanced Power Analog (DEPA) controller designed to regulate current and voltage, and monitor temperature. The device improves digital support for battery charging and is ideal for DC-DC conversion in server, consumer, industrial and automotive applications.

The MCP19124/5 handles configurable charging algorithms for any chemistry, with capabilities for cell balancing and supercapacitor charging. Users may develop their own unique charging methods and implement them as well. Any voltage, current, temperature or duration can be used to trigger a transition to a new portion of the charge profile. These devices are also well suited for any DC-DC application requiring tight voltage or current regulation, capable of supporting flyback, boost, SEPIC or Cuk topologies.

The combination of independent voltage and current control loops means that either the current control loop can regulate to a specified target current, or the voltage control loop can regulate to a target voltage. Each analog control loop has a separate feedback network for independent pole-zero placement, and the ability to perform zero-cross detection for quasi-resonant operation.

The device has the ability to dynamically switch from a voltage target to a current target, or vice versa, by switching between the two control loops. The internal architecture ensures this transition is monotonic, without glitching or transient events. This control configuration even allows for pre-positioning of the output voltage at open or no-load conditions, greatly minimising transients when a load is applied.

A full suite of configurable, adjustable performance parameters is provided. These parameters are set in the internal registers of the device (no external components required) and the settings are dynamically adjustable during operation. The MCP19124/5 has an integrated linear regulator, MOSFET drivers, 8-bit PIC microcontroller core, analog-to-digital converter, precision oscillator, and analog control loops for a compact solution.

For more information contact Shane Padayachee, Avnet South Africa, +27 (0)11 319 8600, [email protected], www.avnet.co.za

Share this article:

High-voltage contactors
RS South Africa Power Electronics / Power Management
TDK Corporation has announced two new additions to its high-voltage contactor portfolio for harsh environments: the HVC43MC with integrated mirror contact and the HVC45 with enhanced short-circuit current handling capability.

Read more...

Chokes rated at 36 A
RS South Africa Power Electronics / Power Management
TDK Corporation has launched the EPCOS SurfIND series, a new range of current-compensated ring core double chokes for high currents and surface mounting.

Read more...

RF arrestor provides robust protection
RFiber Solutions Power Electronics / Power Management
NexTek’s range of coaxial RF surge and lightning arrestors are designed and built to provide robust protection for any radio or coaxial RF transmission application.

Read more...

Wide-Bandgap Developer Forum 2025
Power Electronics / Power Management
To give designers the ultimate in design flexibility, the entire range of WBG power semiconductors will be provided including discretes, modules, and highly integrated solutions ranging from 40 V to 700 V for GaN and 400 V to 3,3 kV for SiC.

Read more...

Categories

Power Electronics / Power Management

Digitally enhanced power controllers

Further reading:

Publications by Technews