stivali ugg A mA, mV, V signal generator circuit d

A mA,[link widoczny dla zalogowanych], mV,[link widoczny dla zalogowanych], V signal generator circuit design and application

Ministry of hot video, sound, improve accuracy, extend the service life; C1, C2 are the two filtering noise power 'capacity; ad hoc supply polarity protection diode D, to prevent reverse polarity ... burn integrated circuits. Figure 4XTR1031 pin function U Figure 2.3.3 Principle of evil row shows the functional switch S placed in mA, mV or V gear, the circuit is energized work. Two 0.8mA current source internally generated, from 12,】 3 feet out, respectively,[link widoczny dla zalogowanych], through R1,[link widoczny dla zalogowanych], R2. 3,4 at the input control voltage between the Vin + Vin a one to adjust the value of R1, you can change the Vin + Vin one of a value. To control the output current Io. Placed in stalls mA, the circuit output as mA meter. Adjust R1. The load current signal 4 ~ 20mA; stalls when placed in mV. Output current Io through the current / voltage conversion resistors R6, R7 converted into voltage regulation 3 application shows that the circuit as a practical signal device, can be used in need mA, mV, V signals in industrial control process simulation debugging,[link widoczny dla zalogowanych], maintenance and other work. It is obvious from Figure 1 and the actual meaning of its application process. Especially when the device is in operation, control equipment failure and not replaced, then a flexible application of the signal meter replacement controller, the emergency control, to avoid losses. Therefore, this introduction for the peer reference selection. * 120 * No. 19 Kim Chang-carbide metal powder Limited Changqing Nickel professional electrolytic nickel powder, diamond powder production plant Our company was founded in 1994, formerly known as Cobalt, Nickel Powder Co., Ltd. Jinchuan Changqing, expanded in 2001 changed its name to Jinchang Changqing Metal Powder Company Limited. Company unique by Tuo Jinchuan nickel and cobalt resources, the use of advanced technology and equipment specializing in the production of electrolytic nickel powder and cobalt powder, low production costs, quality and quality indicators which electrolytic nickel powder found GB5247 - 85 standards, cobalt powder FSSS less than 2 microns. Physical and chemical index of electrolytic nickel powders: Ni + Co> 99.5%; a 250 mesh size, a 3o0 head; Bulk Density 1.4 ~ 1.7g/cm. Cobalt powder: Co> 99.5; Fei 1 to 2 microns particle size; bulk density 0.5 ~ 0.75g/cm. Company Contact Address: Yongchang County, Gansu Province, Jinchang eastern industrial zone Zip: 737200 Tel :0935 --7,530,481, 7530489 Fax: 7530491 Mobile: 13519466626 Beijing sales office Address: Beijing Fengtai District, North Road, Building 7, 1 Xi Luoyuan 『. 】 302 Zip Code: 100077 Tel :010 --87,273,641, 67217572 Fax: 67217572 Mobile: 13801077595 Shanghai sales office address: Hui River Road, Hongkou District, Shanghai No. 5, Lane 25, Room 103, Postal Code: 200437 Tel :021 --55,881,195 (fax) Phone: 1380178563Y References 1 Jiang Hong and so on. Electric Control Equipment Factory used. Chengdu: four J11 Press, 1982.52 Zhang Guohua and so on. New IC application guide. Beijing: Electronic Industry Press. l996.93 Zhouxing Peng and so on. Press, 1998.124 Shao Yusen and so on. Society, 1995.7 detection technology and system design. Nanjing: Southeast University Press, process control and instrumentation. Shanghai: Shanghai Jiaotong University Press (Received 2002 a O4-05) DESIYNANDAPPLICATIoNoFCIRCUIToFASIGNALGENERAToRWITHmA. mV. VSIGNALSHuZhuli (TheNationalDefenceUniversityofScienceandTechnology, Changsha410000) ABSTRACTTheworkprincipleofthecircuitofasmall-sizedpracticalsignalgeneratorwithmA, mV, Vforprocesscontrolispresented. Togetherwiththetemperatureandpressuresystem, somepracticalapplicationofitareintroduced. KEYWORDSmA, mV, Vsignal, circuitprinciple, application

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