PWM的应用可以说非常广泛，控制电机速度、灯光亮度、通信调制等众多领域。 PWM的问题小伙伴问的比较多，最近也在用PWM，这里就分享一下关于PWM的一些内容。 什么是PWM？ PWM：Pulse Width Modulation，脉冲宽度调制。 网上的解释很多，通过下图，你就能直观的理解 ...

很多单片机都不具备DAC输出，但会有多路PWM输出，下面测试利用PCA芯片，GP8500，将PWM信号转换成模拟电压信号。测试一下这个方案，以备之后应用积累经验。 二、电路设计 设计基于STC32G单片机的测试电路。选择 PWMB中的第四个通道，也就是PWM8 的信号 ...

The PLD (programmable-logic-device) code in Listing 1 creates arbitrary-resolution, pulse-width-modulated (PWM) generators. PWM generators are useful as low-bandwidth D/A converters in hardware of ...

In IC design, the typical approach for generating a pulse width-modulated (PWM) signal from an analog value (such as in the control loop for a switch mode power supply) uses a ramp or triangle wave ...

在本期电源设计小贴士中，我将演示对脉宽调制 (PWM) 控制的全桥的简单修改，该全桥可以通过实现零电压开关 (ZVS) 来提高效率，并消除变压器绕组上的谐振振铃。 全桥转换器 全桥转换器为隔离式电源转换提供了一种高效的解决方案 (图 1)。在该拓扑内，控制 ...

We love little tricks like this. Suppose that you want to generate an IR remote’s signal. It’s easy, because most of the codes are known. But it can be slightly harder because most IR remotes and ...

Linear Technology has unveiled a new pulse width modulation (pwm) generator with 48 independent channels. According to the IC specialist, each channel has an individually adjustable 12bit (4,096 steps ...

The LT3761 is a 60 V dc/dc controller designed by Linear Technology to operate as a constant-current source and constant-voltage regulator. The LT3761 is a 60 V dc/dc controller designed by Linear ...

Last time, I showed you a simple PWM block and an open source UART core. This time, I’ll put these parts together to create a PC PWM output peripheral. With working code (working, at least, in ...

Linear Technology Corp. introduces the LT3761, a dc/dc controller designed to operate as a constant-current source and constant-voltage regulator. Linear Technology Corp. introduces the LT3761, a ...

近几年Android手机势头发展相当迅猛，这也导致我已经很久没有使用iOS设备作为主力机了。而为了不放弃我iOS端的游戏账号，所以每天晚上我还会用iPhone 8 Plus肝一肝游戏。 不过就在上个月，当第五次把iPhone 8 Plus的屏幕摔碎后，我直接顺势在双11期间上车了一台 ...