the output port of common mode choke and two bus transmitting port, the RS485 chip is the isolated form chip, perhaps the RS485 chip is still including connecting the isolation opto -coupler between CUP communication chip and RS485 chip in non - isolated form chip and the protection circuit...
Bourns GDT First Principles. Marais, Hein.Application Note AN-960. RS-485/RS-422 Circuit Implementation Guide, April, 2008. TBU-CA065-200-WH.www.bourns.com/data/global/pdfs/TBU-CA.pdf. TISP4240M3BJR-S.www.bourns.com/data/global/pdfs/TISP4xxxM3BJ.pdf. 2038-15-SM-RPLF.www.bourns.com...
1.3Surge Immunity (3)2Test Levels and Priority (4)3Pass-Criteria (5)4Protection Circuitry (5)5Guidelines for Circuit and PCB Design (7)6Conclusion (8)7References (8)List of Figures 1Current Wave Form of ESD Pulse and Timing Sequence of Pulses (2)2Voltage Wave Form of an EFT(Burst)...
The combination of the ADuM1402 iCoupler digital isolator, ADM232L RS-232 transceiver, and isolated power supply, shown in Figure 6, eliminates ground loops and provides effective protection against surge damage. Figure 6. 5-signal isolated RS-232 circuit (DTE side illustrated). RS-485: The ...
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Function: Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .Build with high end electronic components (High End IC and MOSFET ) ,simple structure d...
protectioncircuitform.Then,We followed by theoreticalcalculationandcomprehensiveanalysistodeterminetheparametersofthecomponentstoachievetheanticipatedeffect. Keywords:RS485interface surgeprotectivedevices two-stageprotection decouplingresistance ‘ 人类社会步入信息化以来,电子信息设备和计算机等通讯系统 ...
9 1 Introduction Thermal shutdown (TSD) circuitry is implemented as an overtemperature protection circuit on certain physical layer line circuits. The low impedance output driver in RS-485 physical layer line circuits requires a TSD in order to protect them against fault events or improper use. ...
Cloud platform RS485 concentrator circuitThe utility model discloses a cloud platform RS485 concentrator circuit, including NULL 74HC08D, NULL 74HC08D signal connection has two NULL MAX3487E, and one of them NULL MAX3487E signal connection has the RS485 protection circuit, and another NULL MAX...