LogiCoA™ Power Solutions Analog-Digital Hybrid Control Innovating Switching Power Supply Design Application Note
●The control of switching power supply circuits using digital controllers such as DSP (Digital Signal Processor), etc. (hereinafter referred to as "full digital control") has been put into practical use more than twenty years ago, but it has not become popular except in the fields of "switching power supplies with large power and high functionality" and "DC/DC converters requiring high-speed response". In particular, most commercially available switching power supplies in 300W range (small to medium power) are controlled by analog controllers.
●This is because the high-speed, high-performance processors such as DSP consume a large amount of power and are expensive. Therefore, when a DSP is used in a switching power supply circuit with a small amount of power, the problems of "inefficiency" and "cost UP" become significant.
●To solve this problem, ROHM proposes to apply the analog-digital hybrid control (LogiCoA™ Controls) to designs for switching power supplies, which bring out the advantages of analog control and digital control, and which can compensate for their disadvantages. We also hope to innovate our switching power supply designs by providing LogiCoA™ power supply solutions, centered on the "Microcontroller (MCU) ML62Q20xx Group for Power Supply Control Optimized for Analog-Digital Hybrid Control." Applying LogiCoA™ control enables you to design a switching power supply that has the same power dissipation as analog control, while also offering superior digital-specific functions.
●LogiCoA™ Power Solutions
◆MCU ML62Q20xx Groups for Power Supply Control Optimized for Analog-Digital Hybrid Control
◆Operating system for power supply control microcontroller (multitask, real-time control, state transition control, communication function, etc. are implemented as standard)
◆GUI for communications and its development tool
◆Design references (Practical level control programs, circuit diagrams, and evaluation boards optimized for each power supply topology)
◆Electronic components (power semiconductors, gate drivers, shunt resistors for current sensing, and etc.) for realizing compact, high efficiency switching power supplies
●This document explains the switching power supply design using analog-digital hybrid control, a newly developed MCU for switching power supply control, and topology examples that can be controlled by this MCU.
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ML62Q20xx Groups 、 ML62Q20xx 、 ML62Q2033 、 ML62Q2035 、 ML62Q2043 、 ML62Q2045 |
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Application note & Design Guide |
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Please see the document for details |
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TSSOP20;WQFN24 |
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English Chinese Chinese and English Japanese |
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20. May. 2024 |
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Rev.001 |
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66AN145E |
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1.1 MB |
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