特點(diǎn) 最高輸入頻率 10KHz 計(jì)數(shù)速度 50/10000脈波/秒可選擇 四種輸入模式可選擇(加算,減算,加減算,90度相位差加減算) 90度相位差加減算具有提高解析度4倍功能 輸入脈波具有預(yù)設(shè)刻度功能 計(jì)數(shù)暫時(shí)停止功能 3組報(bào)警功能 15BIT類比輸出功能 數(shù)位RS-485界面 2:主要規(guī)格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sinking (PNP) 脈波觸發(fā)電位: HI bias (CMOS) (VIH=7.5V, VIL=5.5V) LO bias (TTL) (VIH=3.7V, VIL=2.0V) 最高輸入頻率: <10KHz (up,down,up/down mode) <3KHz (quadrature mode) 輸出動(dòng)作時(shí)間 : 0.1 to 99.9 second adjustable 輸出復(fù)歸方式: Manual(N) or automatic (R or C) can be modif 繼電器容量: AC 250V-5A, DC 30V-7A 顯示值范圍: -199999 to 999999 類比輸出解析度: 15 bit DAC 輸出反應(yīng)速度: < 1/f+10ms(0-90%) 輸出負(fù)載能力: < 10mA for voltage mode < 10V for current mode <[(V+)-7.5V]/20mA for two-wire mode 輸出之漣波: < 0.1% F.S. 通訊位址: "01"-"FF" 傳輸速度: 19200/9600/4800/2400 selective 通信協(xié)議: Modbus RTU mode 顯示幕: Red high efficiency LEDs high 14.22mm (.56") 參數(shù)設(shè)定方式: Touch switches 感應(yīng)器電源: 12VDC +/-3%(<60mA) 記憶方式: Non-volatile E2PROM memory 絕緣耐壓能力: 2KVac/1 min. (input/output/power) 1600Vdc (input/output) 使用環(huán)境條件: 0-50℃(20 to 90% RH non-condensed) 存放環(huán)境條件: 0-70℃(20 to 90% RH non-condensed) CE認(rèn)證: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001
特點(diǎn) 最高輸入頻率 10KHz 計(jì)數(shù)速度 50/10000脈波/秒可選擇 四種輸入模式可選擇(加算,減算,加減算,90度相位差加減算) 90度相位差加減算具有提高解析度4倍功能 輸入脈波具有預(yù)設(shè)刻度功能 前置量設(shè)定功能(二段設(shè)定)可選擇 數(shù)位化指撥設(shè)定操作簡易 計(jì)數(shù)暫時(shí)停止功能 3組報(bào)警功能 2:主要規(guī)格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sinking (PNP) 脈波觸發(fā)電位: HI bias (CMOS) (VIH=7.5V, VIL=5.5V) LO bias (TTL) (VIH=3.7V, VIL=2.0V) 最高輸入頻率: <10KHz (up,down,up/down mode) <5KHz (quadrature mode) 輸出動(dòng)作時(shí)間 : 0.1 to 99.9 second adjustable 輸出復(fù)歸方式: Manual(N) or automatic (R or C) can be modif 繼電器容量: AC 250V-5A, DC 30V-7A 顯示值范圍: -199999 to 999999 顯示幕: Red high efficiency LEDs high 9.2mm (.36") 參數(shù)設(shè)定方式: Touch switches 感應(yīng)器電源: 12VDC +/-3%(<60mA) ( 感應(yīng)器電源 ) 記憶方式: Non-volatile E2PROM memory 絕緣耐壓能力: 2KVac/1 min. (input/output/power) 1600Vdc (input/output) 使用環(huán)境條件: 0-50℃(20 to 90% RH non-condensed) 存放環(huán)境條件: 0-70℃(20 to 90% RH non-condensed) CE認(rèn)證: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001
The main objective of this book is to present all the relevant informationrequired for RF and micro-wave power amplifier design includingwell-known and novel theoretical approaches and practical design techniquesas well as to suggest optimum design approaches effectively combininganalytical calculations and computer-aided design. This bookcan also be very useful for lecturing to promote the analytical way ofthinking with practical verification by making a bridge between theoryand practice of RF and microwave engineering. As it often happens, anew result is the well-forgotten old one. Therefore, the demonstrationof not only new results based on new technologies or circuit schematicsis given, but some sufficiently old ideas or approaches are also introduced,that could be very useful in modern practice or could contributeto appearance of new ideas or schematic techniques.
When I started writing the first edition of RF Power Amplifiers for Wireless Communications,some time back in 1997, it seemed that I was roaming a largely uninhabitedlandscape. For reasons still not clear to me there were few, if any, otherbooks dedicated to the subject of RF power amplifiers. Right at the same time, however,hundreds of engineers were being assigned projects to design PAs for wirelesscommunications products. It was not, therefore, especially difficult to be successfulwith a book that was fortuitously at the right place and the right time.
Giga Crime Fighting Mecha Gelato-Bots: The Supreme Icecream-Tron Revolution 8,000,000. A top-down adventure game with three themes; mecha, anime and icecream. This project hopes to evolve with action/rpg/multiplayer elements like classic console games.
