Abstract: This application note discusses various contributors to battery capacity consumption in a battery-backed application, and how to predict battery lifetime in a system. A designer should be able to use this application note to dete...

Abstract: This application note describes how to interface the DS32x35 real-time clock with an 8051-type microcontroller. It also provides a schematic of the application circuit and example software code for implementing basic operating ro...

Abstract: This application note is intended to demonstrate an application using the DS1307 Real-Time Clock with a Microchip PIC microcontroller. The software example includes basic operating routines, and a schematic of the application cir...

Abstract: Recent U.S. legislation increased the daylight saving time (DST) period by four weeks. This change will affect systems that adjust for DST by using real-time clocks (RTCs) with an integrated DST adjustment. This note discusses is...

proteus元件名稱中文名說明 元件名稱  中文名  說  明 7407  驅(qū)動(dòng)門   1N914  二極管...

Abstract: This application note provides an example schematic and software for using the DS1305 real-time clock (RTC) with a PIC microcontroller. The DS1305 is connected to the PIC using the SPI interface. A serial RS-232 port is used for ...

Abstract: The DS1375 2-wire digital real-time clock (RTC) is a low-power, clock/calendar that can operate from a digital clock input at one of four frequencies: 32.768kHz, 8.192kHz, 60Hz, or 50Hz. This application note shows how to derive ...

Abstract: This application note presents a circuit that uses a low-power CMOS comparator to provide an LED visual indication of a low-battery condition. This LBO (low-battery-indicator) is achieved by pulsing the LED at a low frequency and...

摘要：開關(guān)調(diào)節(jié)器能夠取代LDO (低壓差線性穩(wěn)壓器)從3.3V輸入產(chǎn)生1.5V/3A輸出。與LDO 45%的效率相比，開關(guān)調(diào)節(jié)器能夠提供效率高達(dá)87%的更環(huán)保的“綠色”設(shè)計(jì)?，F(xiàn)有的LDO設(shè)計(jì)中電路板...

摘要：本應(yīng)用筆記簡單介紹了鎳鎘(NiCd)、鎳氫(NiMH)和鋰離子(Li-Ion，Li+)可充電電池, 討論它們的性能，并說明在不需要微控制器的情況下如何構(gòu)建單機(jī)結(jié)構(gòu)，安全、快速地為鎳氫和鋰...

5W白光LED燈電路設(shè)計(jì) 利用LED替代MR16鹵素?zé)裟軌蛴行Ы档湍芎模?jié)省電路及系統(tǒng)維護(hù)的成本。本應(yīng)用筆記詳細(xì)說明了在當(dāng)前的MR16...

要：越來越多的便攜式設(shè)備，例如數(shù)碼相機(jī)、蜂窩電話和便攜式媒體播放器等，都開始逐漸增加復(fù)合視頻輸出的連接功能。這類設(shè)備中，視頻數(shù)/模轉(zhuǎn)換器(DAC)產(chǎn)生復(fù)合視頻信號，在...

摘要：設(shè)計(jì)人員通常采用電荷泵或基于電感的boost電路提供白光LED (WLED)的正向?qū)ㄆ秒妷?。電荷泵價(jià)格較低且使用方便，但截至目前，這種架構(gòu)所能提供的效率低于基于電感的boost...

Abstract: Portable electronic devices usually include a single 3- or 4-connector jack which can be a stereo headphone jack, a mono headphone jack with microphone input and hook switch, or a stereo headphone jack with microphone/hook-switch...

Abstract: This application note provides an overview of HB LED driver selection criteria for automotive lighting applications. It reviews HB LED driver topologies and recommends configurations for various automotive lighting applications, ...

Abstract: As consumers demand environmentally friendly ("green," or ResourceSmart) electronics, design engineers must seek new design techniques, standards, and products. This application note lists links to a variety of government, indust...

能源使用量計(jì)算：如何...

Abstract: This application note provides some simple design rules for maximizing the ESD, EMI and general performance of your sensor conditioning IC and system. Guidance on the use of ground planes and decoupling capacitors is provided, to...

Abstract: Sensor compensation has historically been based on an analog architecture. The advent of high-performance calculating engines for digital-sensor signal processing (DSSP) has recently made such architectures available for use in p...

Abstract: Current-mode data transmission is the preferred technique in many environments, particularly in industrial applications. This application note describes the design of a 4-20mA current loop using the MAX1459 sensor signal conditio...