the Business’s First* Analog-Digital Fusion Management Energy Provide Answer

Gives capabilities equal to a completely digital management energy provide with low energy consumption

ROHM has established LogiCoA, an influence provide answer for small to medium-power industrial and client gear (30W to 1kW class). It offers the identical performance as totally digital management energy provides at low energy consumption and value equal to analog energy varieties.

Analog managed energy provides are generally utilized in industrial robotics and semiconductor manufacturing gear that function within the medium energy vary. Nonetheless, in recent times these energy provides are additionally required to offer a excessive degree of reliability and exact management that make it troublesome to satisfy market calls for with analog-only configurations. Alternatively, whereas totally digitally managed energy provides allow positive management and settings, they aren’t broadly adopted within the small to medium energy vary because of the excessive energy consumption and value of the digital controller. To handle this concern, ROHM developed the LogiCoA energy answer that leverages the strengths of each analog and digital applied sciences. Excessive-performance low energy LogiCoA MCUs are utilized to facilitate management of a wide range of energy provide topologies.

The LogiCoA model embodies a design philosophy of fusing digital parts to maximise the efficiency of analog circuits. ROHM’s LogiCoA energy answer is the trade’s first* “analog-digital fusion management” energy provide that mixes a digital management block centered across the LogiCoA MCU with analog circuitry comprised of silicon MOSFETs and different energy units.

In a completely digital management energy provide, the capabilities dealt with by digital controllers comparable to high-speed CPUs or DSPs could be processed by low-bit MCUs, making it attainable to realize elevated performance that’s troublesome to understand with an analog management energy provide at low energy consumption and value. This answer permits for the correction of efficiency variations in peripheral elements in response to the facility provide circuit by storing varied settings comparable to present and voltage values within the LogiCoA MCU. In consequence, there is no such thing as a want to think about design margins not like with analog management energy provides, contributing to smaller energy provides that present larger reliability. On high, as operation log information could be recorded within the MCU’s nonvolatile reminiscence, it’s ideally suited for energy provides in industrial gear that require logging as a backup in case of malfunction.

The analysis reference design REF66009 permits customers to expertise the LogiCoA energy provide answer in a non-isolated buck converter circuit. Numerous instruments needed for analysis are additionally supplied, together with circuit diagrams, PCB layouts, components lists, pattern software program, and assist paperwork, whereas precise system analysis is feasible utilizing the non-obligatory LogiCoA001-EVK-001 analysis board.

Going ahead, ROHM will proceed to develop LogiCoA MCUs to assist varied energy provide topologies, contributing to reaching a sustainable society by making the facility provide block (which accounts for almost all of energy loss in purposes) extra energy-efficient and compact.

LogiCoA Model

LogiCoA is a model that embodies a design philosophy of fusing digital parts to maximise the efficiency of analog circuits. By combining the benefits of analog circuitry with these of digital management, it’s attainable to maximise the potential of circuit topologies, contributing to extra environment friendly energy utilization. As LogiCoA is a design idea that may be utilized not solely to the facility provide area, but additionally to energy options as a complete, ROHM is contemplating its software in future merchandise and options.

Particulars of the LogiCoA Energy Provide Reference Design

The REF66009 analysis reference design supplied on ROHM’s web site permits customers to confirm the performance of the LogiCoA MCU together with the essential operation of the LogiCoA energy provide answer utilizing a non-isolated 12V buck converter circuit. Pattern software program accessible on the reference design web page makes it attainable to substantiate the sequence management of execution duties and the monitoring of varied parameters within the precise set utilizing the LogiCoA001-EVK-001 reference board. For extra data on the reference board, please contact a gross sales consultant or the contact web page on ROHM’s web site.

Software Examples

• Industrial robots
• Semiconductor manufacturing gear
• Gaming purposes

Helps mounting in a variety of normal industrial gear and client units (30W to 1kW).

In regards to the LogiCoA MCU

ROHM is creating LogiCoA MCUs optimized for built-in analog-digital management comparable to LogiCoA energy provide options. Options embody a built-in 3ch analog comparator that may be linked to a timer and D/A converter that allows digital management of varied parameters to assist totally different energy provide topologies.

■ LogiCoA MCU Specs (Tentative)

Availability: Now (LogiCoA MCU samples)

Terminology

Totally Digital Management Energy Provide

An influence provide managed utilizing digital expertise. Excessive-speed CPUs and DSPs can be utilized to exactly monitor and management varied parameters comparable to voltage and present, enhancing energy provide effectivity and reliability. What’s extra, capabilities which can be troublesome to carry out with analog management could be achieved, comparable to buying operation log information. Nonetheless, CPUs and DSPs are costly and eat a considerable amount of energy, which is usually a bottleneck by way of prices and power effectivity.

Analog Management Energy Provide

An influence provide configuration consisting of analog elements. This kind has change into mainstream for energy provides 1kW and under resulting from its simplicity and low energy consumption. Alternatively, implementing superior performance comparable to setting arbitrary parameters and logging information is troublesome, requiring totally digital management that entails excessive prices and energy consumption.

CPU (Central Processing Unit)

Liable for executing packages and processing information. Handles calculations and processing in addition to finishing up directions in response to a program.

DSP

A tool that digitizes analog indicators and performs operations comparable to evaluation, filtering, and amplification on the transformed digital indicators. Versatile sufficient for high-speed processing and varied purposes, it performs an essential function in circuits that deal with digital indicators, comparable to audio and picture processing along with energy provides.