随笔分类 -  Circuit

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摘要:引言当今的许多电子设备都需要一个负输出或正输出转换器,有时则是两者均需要。另外,它们还必需采用各种电源运作,包括 USB、墙上适配器、碱性电池和锂电池等。为了从可变输入电压产生不同极性的输出,电源设计师常常采用多种稳压器 IC,因而导致库存元器件品种的增加。LT®3759 可在 1.6V 至 42V... 阅读全文
posted @ 2014-11-29 20:28 IAmAProgrammer 编辑
摘要:http://cds.linear.com/docs/cn/design-note/DN317%20sim_chs.pdfhttp://cds.linear.com/docs/en/datasheet/1961fa.pdf 阅读全文
posted @ 2014-11-29 19:50 IAmAProgrammer 编辑
摘要:The AD736 true-rms-to-dcconverter is useful for many applications that require precise calculation of the rms value of a waveform. This converter can ... 阅读全文
posted @ 2014-11-28 15:16 IAmAProgrammer 编辑
摘要:With an n- and p-channel MOSFET, you can easily implement a single-pole double-throw (SPDT) switch to isolate part of a circuit and power it from a se... 阅读全文
posted @ 2014-11-28 15:13 IAmAProgrammer 编辑
摘要:Many designs need deep buffering but don't require ultrahigh-memory bandwidth. Examples include image and audio processing, as well as some deep-FIFO ... 阅读全文
posted @ 2014-11-28 14:50 IAmAProgrammer 编辑
摘要:Figure 1shows an example of on/off circuitry commonly used in battery-operated devices. The p-channel MOSFET, Q1, serves as a power switch. When you p... 阅读全文
posted @ 2014-11-28 14:44 IAmAProgrammer 编辑
摘要:Figure 1shows a simple, stand-alone overvoltage detector. The intent of the circuit is to monitor a voltage, VMONITOR, and set the output, VOUT, high ... 阅读全文
posted @ 2014-11-28 14:40 IAmAProgrammer 编辑
摘要:A standard technique for generating analog voltages using µCs is to use a PWM output and filter the signal with a simple RC filter (Figure 1). The vol... 阅读全文
posted @ 2014-11-28 14:38 IAmAProgrammer 编辑
摘要:Short-circuit protection is an obvious requirement for a power supply, especially when its load connects to a cable that's subject to damage. Many mod... 阅读全文
posted @ 2014-11-28 14:35 IAmAProgrammer 编辑
摘要:The circuit inFigure 1is a good choice if you need a power supply with high efficiency and you don't want to use expensive dc/dc-converter ICs. The he... 阅读全文
posted @ 2014-11-28 14:30 IAmAProgrammer 编辑
摘要:The circuit inFigure 1produces a single debounced pulse each time you press S1. Moreover, the circuit uses only logic power from the remote pull-up re... 阅读全文
posted @ 2014-11-28 14:28 IAmAProgrammer 编辑
摘要:Many applications require current sources rather than voltage sources. When you need a high-current source, using a linear regulator is inadvisable, b... 阅读全文
posted @ 2014-11-28 14:27 IAmAProgrammer 编辑
摘要:Linear Technology's recently introduced LTC4300 chip buffers I2C clock and data lines to and from a hot-swappable card. This task is difficult because... 阅读全文
posted @ 2014-11-28 14:21 IAmAProgrammer 编辑
摘要:The achievable accuracy for systems with multiple ADCs depends directly on the reference voltages applied to the ADCs. Medical-ultrasound-imaging syst... 阅读全文
posted @ 2014-11-28 14:18 IAmAProgrammer 编辑
摘要:The easy way to clamp a signal to a given value is to use two zener diodes, connected back-to-back. This method has several disadvantages. The accurac... 阅读全文
posted @ 2014-11-28 14:14 IAmAProgrammer 编辑
摘要:ECL circuits typically have relatively small logic spans of approximately 800 mV. Because of the small span, to drive TTL circuits from ECL levels nor... 阅读全文
posted @ 2014-11-28 14:13 IAmAProgrammer 编辑
摘要:A number of circuits, such as level detectors and AM demodulators, benefit from a rectifier with a low offset voltage. Silicon diodes have an offset o... 阅读全文
posted @ 2014-11-28 14:10 IAmAProgrammer 编辑
摘要:The circuit inFigure 1uses a minimal number of external parts to raise the maximum output current of a 0.5A buck switching-regulator IC to more than 6... 阅读全文
posted @ 2014-11-28 14:05 IAmAProgrammer 编辑
摘要:Boost converters, like other switchers, have traditionally received their control signals from a dedicated circuit. However, a recent trend is to inte... 阅读全文
posted @ 2014-11-28 13:39 IAmAProgrammer 编辑

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