Converter Isolated
2010
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 DC DC Converter 7 Watts Astrodyne 18 36 VDC Input 12 VDC Out 625ma Isolated $10.00 Time Remaining: 8d 8h 27m Buy It Now for only: $10.00 |
 BB ELECTRONICS OPTICALLY ISOLATED RS 422 485 CONVERTER $22.00 Time Remaining: 3d 3h 24m Buy It Now for only: $26.00 |
 CONVERTER MODULE USB to USB ISOLATION iCoupler ADUM4160 ADUM5000 $67.00 Time Remaining: 17d 1h 26m Buy It Now for only: $67.00 |
 1 NIB ICT ICT2060 12AIW ICT206012AIW ISOLATED CONVERTER $295.00 Time Remaining: 5d 54m Buy It Now for only: $295.00 |
 DC DC Converter 3Watts Cincon 36 72 VDC Input + 12 VDC Isolated $5.00 Time Remaining: 8d 8h 3m Buy It Now for only: $5.00 |
 Black Box RS 232 to RS 485 422 Converter Plus with Opto Isolation Standalone $30.00 Time Remaining: 4d 12h 58m Buy It Now for only: $30.00 |
 DC DC Converter 7 Watts Tri Mag 48 VDC Input +12 12 Dual VDC Out Isolated $10.00 Time Remaining: 8d 8h 18m Buy It Now for only: $10.00 |
 CB Com Isolated RS 232 to RS 485 Converter CB 7520 $50.00 Time Remaining: 20d 2h 10m Buy It Now for only: $50.00 |
 NEW ELCON SERIES 1000 ISOLATED SIGNAL CONVERTER $9.99 Time Remaining: 6d 21h 16m Buy It Now for only: $9.99 |
 USED PHOENIX CONTACT MCR C I I 44 DC ISOLATED SIGNAL CONVERTER MCRCII44DC $10.00 Time Remaining: 12d 22h 22m Buy It Now for only: $10.00 |
 CONVERTER MODULE USB to RS232 ISOLATION iCoupler ADUM4160 ADUM5000 $77.00 Time Remaining: 17d 1h 47m Buy It Now for only: $77.00 |
 DC DC Converter 3Watts TRI MAG 9 18 VDC Input 5 VDC 600 ma max Out Isolated $5.00 Time Remaining: 8d 7h 43m Buy It Now for only: $5.00 |
 DC DC Converter TRI MAG 48VDC in 5VDC output 360ma max output Isolated $4.00 Time Remaining: 8d 7h 24m Buy It Now for only: $4.00 |
 DC DC Converter 3Watts Cincon 18 36 VDC Input 5 VDC Out 600ma max Isolated $5.00 Time Remaining: 8d 8h 10m Buy It Now for only: $5.00 |
 BB Electronics RS 232 to RS 422 485 Optically Isolated Converter 485LDRC $49.99 Time Remaining: 21d 6h 12m Buy It Now for only: $49.99 |
 BRAND NEW ELCON 1 CHANNEL ISOLATED SIGNAL CONVERTER 301 $99.00 Time Remaining: 5d 9h 30m Buy It Now for only: $99.00 |
 DC DC Converter 3Watts TRI MAG 24VDC Input 5VDC 600 ma max Output Isolated $5.00 Time Remaining: 8d 7h 33m Buy It Now for only: $5.00 |
 FISHER Signal Converter Module Output Isolated KM1546 43A6829X0A2 E $735.00 Time Remaining: 5d 5h 48m Buy It Now for only: $735.00 |
 Love Controls Corp Isolated Serial ConverterModel 350 5602 RS 232 to RS 485 $37.50 Time Remaining: 22d 12m Buy It Now for only: $37.50 |
 INDUSTRIAL COMM ISOLATED CONVERTER 4520 CAT42895 NIB $39.00 Time Remaining: 4d 2h 1m Buy It Now for only: $39.00 |
 RS232 to RS485 Optical Isolated Signal Converter $56.00 Time Remaining: 20d 13h 58m Buy It Now for only: $56.00 |
 LOVE CONTROLS MODEL 350 ISOLATED SERIAL CONVERTER RS 232 TO RS 485 $19.99 Time Remaining: 15d 21h 51m Buy It Now for only: $19.99 |
 NEW TELEBYTE 8322 RS 232 TO RS 422 RS 485 OPTICALLY ISOLATED CONVERTER 41501 $149.15 Time Remaining: 27d 11h 10m Buy It Now for only: $149.15 |
 NEW B B ELECTRONICS 485LDRC9 OPTICALLY ISOLATED RS 232 TO RS 422 485 CONVERTER $180.00 Time Remaining: 6d 2h 58m Buy It Now for only: $180.00 |
 WATANABE ELECTRIC WGP DS 36P 3 ISOLATION CONVERTER $24.99 Time Remaining: 29d 11h 41m Buy It Now for only: $24.99 |
 Used Adtech SCT 502 Isolated Signal Converter $85.00 Time Remaining: 8d 10h 8m Buy It Now for only: $85.00 |
 RS 232 to RS 485 RS 422 Optical Isolated Converter $88.00 Time Remaining: 20d 21h 22m Buy It Now for only: $88.00 |
 Optical Isolation Converter UT 501 UT501 NIB $88.00 Time Remaining: 22d 14h 9m Buy It Now for only: $88.00 |
 BB Optically Isolated Converter 485LDRC9 with warranty $250.00 Time Remaining: 1d 5h 35m Buy It Now for only: $250.00 |
 LOVE CONTROLS MODEL 350 ISOLATED SERIAL CONVERTER RS 232 TO RS 485 NEW CONDITION $45.00 Time Remaining: 8h 13m Buy It Now for only: $45.00 |
 Siemens Isolated Mutil Drop Converter $50.00 Time Remaining: 21d 3h 59m Buy It Now for only: $50.00 |
 ADVANTECH PCL 8442 110 8 Port Isolated Converter $99.00 Time Remaining: 14d 8h 3m Buy It Now for only: $99.00 |
 Delta TAU ACC 26A Optical Isolation converter $699.00 Time Remaining: 7d 8h 27m Buy It Now for only: $699.00 |
 BB Electronics 485LDRC Optically Isolated RS 232 to RS 422 485 Converter NEW $175.00 Time Remaining: 2d 2h 22m Buy It Now for only: $175.00 |
 WOODWARD 8272 711 REV D ISOLATED SIGNAL CONVERTER 43599 $299.99 Time Remaining: 9d 23h 23m Buy It Now for only: $299.99 |
 ADVANTECH PCL 8442 210 8 Port Isolated Converter $199.00 Time Remaining: 14d 8h 7m Buy It Now for only: $199.00 |
 OMEGA LDM485 ISOLATED RS 232 485 CONVERTER NIB $129.99 Time Remaining: 5h 21m Buy It Now for only: $129.99 |
 ADAM ISOLATED CONVERTER ADAM 4520 $150.00 Time Remaining: 26d 9h 50m Buy It Now for only: $150.00 |
 1 NEW GE DS3800NVAA ISOLATION CONVERTER CARD NIB $3,999.99 Time Remaining: 25d 56m Buy It Now for only: $3,999.99 |
 ADAM 4520 RS 232 RS 422 485 ISOLATED CONVERTERfree shipping $55.99 Time Remaining: 23d 23h 1m Buy It Now for only: $55.99 |
 Wabtec Railway Electronics Isolated Chassis Mount DC DC Converter 74VDC to 136 $295.00 Time Remaining: 7d 11h 53m Buy It Now for only: $295.00 |
Converter Isolated
Isolation and stability of the 485 bus solution -485 bus, the bus - electric industry
1, on the 485 bus a few concepts:
1,485 bus communication distance up to 1,200 meters.
485 bus architecture according to theory, the premise in the ideal environment, the 485 bus transmission distance can reach 1200 meters. The condition of the communications wire High Quality, the baud rate to 9600, only 485 loads a device to enable communications from the 1200 meters, it is usually the actual stability of the 485 bus communications often fail to 1,200 meters away. If you load more than 485 devices, wire impedance standard, diameter too small, poor quality converters, lightning protection equipment, increased complexity and the baud rate, etc. factors that will reduce the communication distance.
2,485 bus can communicate with 128 devices.
Fact that not all 485 converters are able to take 128 devices, based on the 485 converter chip inside the device type and 485 type chips to determine only the lower chip in accordance with indicators to determine the load capacity. Load capacity of 485 chips generally have three levels - 32, 128 units and 256 units. In addition, the nominal theoretical fact has not been often, longer distance communication, the higher baud rate, the finer wire, wire quality worse, worse quality converter, power converter in short supply (passive converter), lightning protection is stronger, this will reduce the number of actual load.
3,485 bus is the simplest, most stable, most mature industrial bus architecture
This concept is wrong. 485 is a network for equipment, and economical, way of traditional industrial bus. The communication quality construction experience need to debug and test mining can be guaranteed. 485 simple, but must also be carried out strictly in accordance with wiring installation and construction specifications.
2, must be strictly in accordance with the Construction Specifications Construction
Construction of the 485 bus system must be in strict accordance with construction specifications construction, particular attention to the following points.
1,485 + and 485 - data lines must be mutually twisted.
2, wiring must be shielded twisted pair multi-strand cloth. Multi-unit is to stand, shield is intended to facilitate debugging when special circumstances arise, because the 485 twisted-pair differential-mode communication theory, twisted the better anti-interference. Do not use twisted pair is wrong.
3,485 bus must be hand in hand type of bus architecture, and resolutely to avoid star connections and branching connections.
4, AC-powered device and the chassis ground must be true, but a good grounding. There are many places on the surface triangular socket, in fact, no ground, good ground to prevent equipment being struck by lightning and surge impact. Electrostatic accumulation can better match the design of lightning protection equipment to release energy, protect the 485 bus equipment and related chips from harm.
5, in order to avoid its strong electrical interference, 485 bus should be avoided, and strong electric together.
3, recommended several debugging methods: In debugging connection prior to first ensure the correct equipment, and construction meet the standard. According to several problems encountered with the following testing method.
1, were in France: with a cable or shielded cable to the GND of all 485 devices are connected together, so that all the equipment to avoid impact of communication between the potential difference.
2, the terminal resistance method: a 485 device in the last 485 + and 485 - and connected on 120-ohm termination resistors to improve the communication quality.
About the Author
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is it true that The Flyback converter is a transformer-isolated version of the Boost converter.?
I think this is right. A flyback converter that is not isolated is a boost converter. Both store energy in an inductor's magnetic field, alternately with dumping energy out of the inductor to the output. But the flyback inverter can use coupled inductors to isolate the output voltage.
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Regards,
John Popelish
PFM Isolated AC-DC Converter with PFC Enabling the World's Lowest-Profile Power Systems
