Name: CIPハイブリッドパワースターターキットによるSMPS設計 (SMPS Design with the CIP Hybrid Power Starter Kit)
Uploaded: 2021-01-14T08:29:11.000Z
Duration: 1 h 3 min 11 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

Hello my name is Andy Reiter, I'm with Microchips Power Supply Applications Group.

The topic we would cover today is our new CIP Hybrid Power Starter Kit.

様態の副詞

This starter kit is introducing the PIC16F176X and 7X families of freely

programmable pwm microcontrollers. These microcontrollers

have specific peripherals that are running independently from the core and

are highly configurable so that it can configure them or interconnect them in

specific ways to form some PWM controller architectures. So the

advantage of this freely configurable peripherals are that you can tailor the

PWM controller capabilities specifically to your very application. To allow

designers to utilize these capabilities we also have introduced a new design

tool chain, which is encapsulated in our development environment MPLAB X. So this

is part of our Microchip Code Configurator tool called MCC, and is a

set of sub libraries that allows you to simplify the configuration of multiple

peripherals at the same time. We have set up this assembly in this demo here where

we have a starter kit on the left and here on the right on the screen you see

this MPLAB X environment with the specific switch mode power supply library

subset for Microchips Code Configurator. So this tool now can be used to set up

PWM controllers that support different control modes like peak current load

control, voltage mode control, average motor  control. You can combine

multiple control loops, you can add in specific fault handlers and the device

itself then supports you with setting specific thresholds like shutdown levels

for maximum currents, voltage clamping, inputs under voltage

over voltage lockout and further features by utilizing the internal DACs.

So the variety of things you can do with these peripherals is really really wide.

So the switching power supply library helps you to abstract the

capabilities and tailor them to specific topologies. So therefore we also offer

different sets of pre-configurations for targeting specific topologies. So once

you have used that tool to set up a PWM controller for a specific application

and topology, that where you're generating the code, the code is

downloaded into the device, the codes that's generated with the device also

includes functional aspects like soft start, so that you're having a nice

behavior right from the beginning, so that when you fire up the power supply

for the very first time that you can be sure that it won't burn. So once you have

downloaded it, and this is what we are doing in this demo set, is then we have

connected a network analyzer to the output, we are injecting an error signal

and we're using our BODI 100 Network Analyzer to measure the total open-loop

gain in the closed-loop system. So depending on the additional tools you

might have used to design your power supply and to set up your compensation networks,

so to achieve a certain stability of your application, you can then

just measure directly from the kit the final results compared with your

simulation and then you take it from there and in further some iteration

steps you might have quickly achieved your goal.

so before we go into the details about this kit and its software and design

tool chain might be necessary to explain a little bit what hybrid power actually

means the work hybrid is often used in different contexts like hybrid power

supplies is something entirely different from hybrid power controllers so hybrid

in our context means that it's a device which is somewhere between the analog

control domain and the full digital control domain so analog controllers

usually come as fixed Asics covering very specific topologies or specific

applications so the conventional pol controllers for example or you have here

switch switching regulator for flight controllers or resonant converters and

for every single one of them so for every single application you might have

a set of specific Asics to choose from while full digital control then

digitizes even the feedback loop so everything is running and software the

interface is an A to D converter so analog signals continuous time domain

analog signals are converted into digital signals and then processed

through software and then some PWM is adjusted so this the letter 1 full

digital control gives you extreme flexibility in terms of what a

controller can do while analog circuitry is might have a significantly higher

performance but they are nailed to what they have been designed for so that

section between both worlds that is what we're trying to cover with hybrid

controls so it means we have a small device with relatively low power

consumption but and in within the architecture we're combining digital

logic with analog circuits so that we can leverage that in the advantages of

both worlds in one single device so and when we are focusing on these hybrid

devices then it's always a a device which is targeting the

application would have a specific requirement for very specific features

so the basic concept of these products is that in one chip you get a

microcontroller core and a PWM controller peripheral that PWM

controller peripheral always breaks down into three main major blocks consisting

of the compensator so Erin play fire basically and the modulator so the

modulator then determines which control loop control mode you're applying and

there's always an additional fault level that helps you to make sure that the

power supply stays within its safe operating range default is usually tied

into the modulator or uses inputs to the modulator to shut down the passerby in

case something is going wrong so when we're looking into the modulator so here

on the right side we see a specific setup for a voltage or an average

current mode and on the top we see an implementation for a classical picker

remote controller so here on the upper writes in the current note section we

find a subset of codes lay or labeled with PRG so that stands for programmable

RAM generator so we are utilizing this ramp generator to generate a negative

ramp which is modulated onto the reference input to our modulator that

then is used usually in Picard mode for slope computation but it can also be

used in voltage mode this is when you look below you also see a voltage range

on the upper right where we use a positive ramp to generate an analog PWM

signal the next therefore we find in this modulator are fast comparators so

in the current mode section on the top we find that comparative

between the RAM generator and our so-called Co G which is actually our PWM

output logic block so that comparator is used to tie in the current feedback so

that we can trip on peaks of the inductor current while in voltage and

average card mode that comes very same comparator is now used to compare the

reference from the Aaron profile to the artificially generated ramp and when the

ramp exceeds the reference voltage level then it changes its output strips and

and it's our latch and this then influences our PWM output so in both

motivators we always use a PWM module and the so called CEO cheese or the

complimentary output generator or in other devices it's called

a complimentary waveform generator cwg but these blocks to is actually said

they give to get to the capability to start out from a single PWM signal and

split it up into complementary waveforms allowing you to adjust that x or you can

split it up up to a full bridge drive so it also offers additional inputs for

字幕リスト動画再生

CIPハイブリッドパワースターターキットによるSMPS設計 (SMPS Design with the CIP Hybrid Power Starter Kit)

specific

sense

achieve

current