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Keywords: PWM controller; MAX668/MAX669; DC/DC converter
1 Introduction
MAX668/MAX669 is a fixed frequency PWM controller working in current mode, with power exceeding 20W and adjustabl...[Details]
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There are two key challenges facing designers of resonant audio systems. The first challenge is to utilize the resonant frequency and resonant region of a speaker or buzzer to produce the maximum o...[Details]
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The stepper motor control system implemented by the single-chip microcomputer has the characteristics of low cost and flexible use. It is widely used in CNC machine tools, robots, quantitative feedi...[Details]
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The Ministry of Construction requires that newly built public and residential buildings in cities and towns that use centralized heating facilities must design and install heating systems with househ...[Details]
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Google's just-released Pixel 3A was developed by a Taiwanese team that Google acquired from HTC a year ago. HTC has remained silent about its new flagship since the U12 Plus went on sale last summer....[Details]
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1. Project Overview
1.1 Introduction
At present, environmental protection has become a development theme. The introduction of the national sustainable development strategy has brought environmenta...[Details]
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1. The first error message
***WARNING L15: MULTIPLE CALL TO SEGMENT
SEGMENT: ?PR?_WRITE_GMVLX1_REG?D_GMVLX1
CALLER1: ?PR?VSYNC_INTERRUPT?MAIN
CALLER2: ?C_C51STARTUP
This ...[Details]
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When configuring the IO of STM32, you must first turn on the clock, that is, RCC. You can configure registers through the library or directly control the registers. There are several registers, but ba...[Details]
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bne - branch if nemachines: base
syntax: bne $soffset8
format: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0f-op4f-condf-soffset80xd0x1soffset8
semantics:(if (not zbit) (set pc soffset8)) That is, if zbit ...[Details]
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I don't know when it started, but "S" stands for "enhanced version" for smartphones. Whenever the model number uses "S", it means "the appearance remains basically unchanged, but the configuratio...[Details]
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How to make temperature measurement simpler, more flexible and more accurate? These two signal conditioning solutions can be referenced As a temperature measuring instrument made using the principl...[Details]
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Power batteries are the heart of new energy vehicles and, to a certain extent, control the lifeline of the development of new energy vehicles. For new energy vehicles, the quality of power batterie...[Details]
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USB Type-C, with its powerful functions and the strong promotion of Apple, Intel, Google and other manufacturers, will quickly lead to a revolution in USB interfaces and will have a positive impact...[Details]
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When I adjust the oscilloscope to the same order of magnitude as the PWM cycle, I can measure the standard PWM waveform. Then when I increase the oscilloscope cycle, I find that a magical waveform ap...[Details]
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In the existing automobile market, many brands and models are widely recognized for their excellent safety performance. These brands and models have performed well in safety technology, crash test ...[Details]