在工业控制和偏置调节电路中有时需要将电压转换成电阻，这一过程在具体实施时有一定的难度。图1所示电路利用两路数字电位器提供了一个简单的转换方案。图1. 利用两路相同的数字电位器实现电压-电阻转换数字电位器U1和 ......
摘要：许多装置需要一个用户接口来调整温度、背光强度和电源电压等，这个用户接口需要能够避免按键调整中的误操作。若在这些装置中使用一个数字电位器，设计人员可以通过一个简单的硬件接口避免错误的调整操作。
概述利用 ......
摘要：本应用笔记说明如何对MAX2010 (可调节RF预失真器)标准评估板进行下盖，使其工作频率优化在450Hz。默认情况下，预失真器工作在500MHz至1000MHz，但是，对MAX2010评估板稍做修改，就可以使其优化工作在更低频率。
修改说明 ......
摘要：DS3984, DS3988, DS3881, DS3882, DS3992和DS3994为冷阴极荧光灯(CCFL)控制器，它们使用推挽结构来产生驱动荧光灯所需的高压交流波形。在推挽式驱动器中，升压变压器的寄生电感与n沟道功率MOSFET的寄生输出电容组成 ......
Abstract: An isolated transformer-driver IC (MAX845) and small external transformer produce an isolated gate-control signal for a power FET. Designers of power electronic circuits must often drive pow ......
Abstract: Residual phase noise from local oscillators (LO) can be degraded by additive noise of on-chip local oscillator drivers/buffers in integrated circuit mixers. Reciprocal mixing of strong RF si ......
Abstract: Because of internal circuit-breaker delay and limited MOS-gate pulldown current, many hot-swap controllers do not limit current during the first 10µs to 50µs following a shorted output. Th ......
Abstract: This application note provides the reader with information concerning how to interface the Maxim DS2760 Battery Monitor and Protector IC to a microcontroller. The DS5000 microcontroller modu ......
Abstract: The charge-pump voltage converter is known mostly in its doubler and inverter configuration. This article focuses on the voltage-splitter charge-pump configuration, which divides the input v ......
Numerous diverse and conflicting constraints burden the designer of small hand-held products. Aside from the customary restrictions on size and weight, these constraints include cost limitations, stri ......
摘要：由于Li+电池充电器的充电过程会持续一个小时甚至更长的时间，利用实际负载(即电池)对充电器进行测试将非常耗时。本应用笔记介绍了一种简单的Li+电池仿真方法，与采用实际电池进行测试相比，这种方法能够更加方便地测试 ......
摘要：DS2715电池充电器的开关速度因充电模式、电感选择和电池电压而有所不同。某些情况下，需要了解各种条件下的开关速度,以解决噪声灵敏度、峰值充电电流和电感选择限制等问题。本应用笔记提供了一个简便易用的数据表 ......
摘要：MAX8538双路同步buck控制器能够提供3A的+5V、-5V输出。利用一个控制器作为同步整流降压(buck)转换，而另一个通过变压器输出负压。电路支持软启动和软关断。 这里提供的1MHz、全陶瓷电容设计方案采用MAX8538双同步b ......
Abstract: When using an external thermal diode to measure temperature, the accuracy of the temperature measurement depends on the characteristics of the external diode. Two critical parameters that af ......
The biasing of avalanche photodiodes (APDs), piezoelectric transducers (PZTs), vacuum fluorescent displays (VFDs), and microelectromechanical systems (MEMS) require high-voltage power supplies. This a ......
Abstract: A linear circuit measures temperature and controls the speed of a cooling fan by generating a variable supply voltage for the fan. Fan noise is becoming a larger issue as more electronic equ ......
