Triac Output
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ALLEN BRADLEY PLC SLC500 CPU & 75I/O DC IN TRIAC OUTPUT $999.99 |
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Omron C500-OA225 C500OA225 32 Triac Output Module NIB $549.95 |
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C500-OA225 New In Box Omron PLC Triac Output 3G2A5-OA225 C500OA225 3G2A5OA225 $499.99 |
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Allen Bradley 1747-L20B Ser B PLC W/12 120V INPUT & 8 TRIAC OUTPUTS AC POWER $472.49 |
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C500-OA222 New In Box Omron PLC Triac Output 3G2A5-OA222 C500OA222 3G2A5OA222 $459.99 |
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Reliance Shark 45C965 Triac Output Module 45C-965 $399.99 |
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NIB OGDEN ETR-8130 TEMP CONTROL 8130-3144-11 INPUT: 90-264VAC OUTPUT: TRIAC $300.00 |
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AB Allen Bradley SLC500 Triac Output Module CAT1746-OA16 *NIB* $300.00 |
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RELIANCE PLC AUTOMAX TRIAC 120V OUTPUT MODULE 45C965 $299.00 |
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RELIANCE PLC AUTOMAX TRIAC 120V OUTPUT MODULE 45C965 $299.00 |
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QY22 Mitsubishi PLC New In Box 16 Point Triac Output Card $279.99 |
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Reliance Electric Triac Output Module 45C965 $250.00 |
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Allen Bradley PLC Output 1746-OA8 8PT Triac (4622) $249.99 |
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C200H-OA223 Omron PLC Triac Output C200HOA223 $199.99 |
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C200H-OA224 Omron PLC Triac Output C200HOA224 $199.99 |
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Allen Bradley SLC 500 Triac Output Module 1746-OA16 NR! $199.95 |
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OGDEN ETR-8130 TEMP CONTROL 8130-314411 INPUT: 90-264VAC OUTPUT: TRIAC $185.95 |
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NIB Omron 16Pt TRIAC Output Module CS1W-0A211 OA211 $185.00 |
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*SEALED* ATS NL1020 2623D02G02 Westinghouse Numalogic Triac Output $178.18 |
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QY42P Mitsubishi Melsec-Q 64pt Triac Output Module $175.00 |
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OMRON OUTPUT MODULE CQM1-OD213 32POINT 0.1AMP TRIAC $174.99 |
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MITSUBISHI AY51 OUTPUT MODULE TRIAC SINK 32POINT 12/24V $164.99 |
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C200H-OA122-E Omron PLC Triac Output C200HOA122E $159.99 |
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EUROTHERM TEMPERATURE CONTROLLER TRIAC,LOGIC,LOGIC OUTPUT BOARD $150.00 |
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Allen Bradley SLC500 OUtput Triac Module Card 1746-0A8 $150.00 |
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Mitsubishi Output Module QY40P 16 Point Sink Triac 3959 $149.99 |
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OMRON SYSMAC C200H-OA222 OUTPUT MODULE 16pt TRIAC $149.99 |
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ALLEN-BRADLEY 1746-OA8 PLC AC 8 P TRIAC OUTPUT MODULE $149.90 |
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Mitsubishi AY51-UL Output module Melsec triac AY51UL $130.00 |
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C200H-OA222 Omron PLC Triac Output C200HOA222 $129.99 |
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180-2463 Pc Board Quad Triac Output Switch $119.99 |
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CUTLER-HAMMER D520TT1 TRIAC OUTPUT MODULE 6-120V A1 $100.00 |
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Barber - Colman 33-1092 Output Triac Board $100.00 |
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A1SY50 Mitsubishi PLC 16 Point Triac Output A1S-Y50 $99.99 |
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AY51 Mitsubishi Melsec 32point Triac Sink Output Module $95.00 |
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C-H Eaton 8570A-6501 Output Device Isolated Triac $90.00 |
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ALLEN BRADLEY 1746-OA16 TRIAC OUTPUT 16PT. SER.C SLC500 $85.00 |
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Allen Bradley 1746-OA16 SLC 500, Series D Output Module, Triac $82.00 |
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Mitsubishi, OUTPUT MODULE TRIAC SINK 32 POINT, AY51 $79.95 |
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Reliance Electric Triac Output Module 45C900 $75.00 |
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Allen Bradley 1746-OA8 Triac Output Card 1746OA8 B $69.95 |
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C-H Eaton 8574A-6501 Output Device Triac Series A1 $57.00 |
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Allen Bradley 1746-OA8 Triac Output Card 1746OA8 $49.95 |
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MITSUBISHI A1S-Y40 OUTPUT TRIAC SINK 16 POINT $45.00 |
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NOS! TRI-TRONICS DC POWER SUPPLY WITH DUAL TRIAC OUTPUTS SEPS-5 SEPS5 $44.95 |
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MISTUBISHI OUTPUT TRIAC BLOCK FX-8EYS-ES/UL $40.00 |
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Allen Bradley 1746-OA16 Triac Output Module Series D $40.00 |
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Allen Bradley 1746-OA16 Triac Output Module Series C $38.00 |
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Allen Bradley 1746-OAP12 Output Module 1 Amp Triac $35.00 |
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Allen Bradley 1746-OA16 Triac AC Output Module Ser. C $29.99 |
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Allen Bradley 1746-OA16 Triac Output Module Series A $28.00 |
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ALLEN BRADLEY SLC 500 TRIAC OUTPUT MODULE 1746-OA16 SER. D $27.95 |
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Mitsubishi AY51 Melsec Output Module Triac Sink AY51 $25.00 |
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BARBER COLMAN 33-1112-2 TRIAC OUTPUT A-12041-2 4169 $24.99 |
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Allen Bradley 1746-OA8 TRIAC Output Module #7215 $24.99 |
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Allen Bradley 1746-OA16 Output Module 1 Amp Triac $20.00 |
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Cutler-Hammer Output Device 8574A-6501 Triac New In Box $20.00 |
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NEW BARBER-COLMAN # A11770 3580 TRIAC OUTPUT # 33-1092 $19.60 |
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S212S02 Solid State Relay & Triac Output 12Amp 250V 1X $4.99 |
More Triac Output related items:
A.C. Solid state relay circuit and structure  by Erin0806
Solid state a.c. relays are well known. Such relays, with optical isolation between input and output, are also well known. In presently existing devices, many discrete components are commonly required to complete the a.c. circuit. Thus, it maytake thirty or more discrete thyristors, transistors, resistors and capacitors to manufacture a single device. Attempts have been made to integrate the various parts of the entire solid state relay, but these have met only limited success due to the mixof high voltage and high power components.
Solid state relays made in the past have also employed zero voltage crossing circuits to ensure turn on of the thyristor only when the a.c. voltage is within some small "window". These circuits have also been relatively complex and difficult tointegrate into the main power chip. Thus, zero cross firing circuits have required the use of a discrete resistor connected across the power terminals. These resistors have not been easily integrated into a single chip because of the difficulty offorming this resistor on the chip surface.
It has also been difficult to provide so-called "snubberless" operation for the relay under any inductive or resistive load. Thus, while solid state relays may operate well under resistive or slightly inductive loads, they may tend to "halfwave" or "chatter", which is a condition wherein a relay turns on only for one-half of a cycle, under a highly inductive load. This has occurred in the past because the relays are commonly provided with conditioning circuits for suppressing fast turn onof the circuit under some fast transient or high dV/dt condition. When the device is operated under a very highly inductive load, however, voltage transients are commonly generated repetitively during device turn on. When the signal conditioningcircuit misinterprets this as a transient signal, it shuts off the power output during a particular half phase of the operation. The circuit will then appear to turn to normal during the next half wave and the relay will turn on. This condition repeatsso that the relay turns on only during one or another of the half waves of the full cycle. To avoid this condition, relays of the past have been formed with reduced firing sensitivity and this has required reduction of sensitivity to optical firing.
Since prior art relays have been relatively complex, they have required substantial volume for their housings. Moreover, solid state relay of the past have been limited to a maximum temperature rise of about 110° C., thus limiting theircurrent-handling capability. Finally, solid state relays of the past have been relatively expensive in view of the need for large numbers of discrete components and large housings.
In accordance with the present invention, two identical thyristor power chips are provided for an a.c. relay wherein the power chips are both of lateral construction with both cathode and anode electrodes at one surface of each device and whereineach of the chips can be optically fired and has an optically sensitive upper surface which, when illuminated, will permit the device to become conductive between its anode and cathode electrodes.
The gate circuit of each of the thyristors is connected to a novel control circuit, formed either of discrete components or of components merged within the body of the semiconductor material forming the thyristor. The control circuit is operableto prevent turn on, even though the surface is illuminated, when the voltage across the device exceeds a value greater than some predetermined window value, or when high dV/dt transients appear across the device. This control circuit includes a clampingtransistor which can be turned on to clamp the gate of its respective thyristor and a capacitive divider circuit connected across the main power electrodes. The capacitive divider applies a control signal to the control transistor.
One of the capacitors of the capacitive divider includes the distributed capacitance of the control transistor. So long as the control transistor is on, its respective power thyristor cannot turn on even though its surface is illuminated. Thecapacitive divider is arranged so that the control transistor is normally turned on for all absolute voltages across the main device greater than some relatively small window value. Thus, the power thyristor cannot turn on outside of this small windowvalue or zero cross value.
The novel capacitance divider, in combination with the control transistor, will now operate to suppress both fast transients and still allow the device to function under its normal load condition. Thus, voltage transients which are generatedrepetitively during device turn on under highly inductive load conditions will not be misinterpreted as a fast transient and the power thyristor chip will be permitted to turn on in its normal manner under even highly inductive loads.
The novel signal conditioner of the invention also allows for substantial improvement in optical sensitivity of the device without misfiring. Note that currently available optically isolated triac drivers and the like are always limited eitherin dV/dt capability or optical sensitivity because of their inability to separate low level command signals from transients.
A novel housing is provided for the two chip arrangement in which the two chips are easily and inexpensively connected in parallel with one another and are protected from the outer environment. An alumina substrate or other suitable heatconductive but electrically insulative substrate is provided with suitable conductive patterns thereon for receiving the various chips of the switch and for connecting the chip electrodes to suitable output leads. The two identical thyristor chips whichare to be connected in anti-parallel are symmetrically secured to respective conductive pads on the substrate and are in alignment with one another and with the terminal ends of two conductive patterns on the substrate. Two continuous wires are thenstitch-bonded to the thyristor pads and conductive leads in such a manner that one lead wire is electrically connected to the anode pad of one chip, the cathode pad of the second chip and one of the conductive patterns which is connected to an input a.c.lead. The other wire is similarly connected to the other electrodes and conductive pattern to conduct the thyristors in anti-parallel.
plastic cap of a white illumination reflecting material then is secured to the substrate and covers the region of the substrate containing the LED and the two power chips. The interior of this cap may be filled with a transparent plastic whichencloses and encapsulates the surfaces of the chips and their interconnecting leads.
If the control circuit for the power transistor is carried out in discrete form, the discrete components may also be suitably connected to this substrate. Preferably, however, these components are integrated into the individual power chips sothat the entire solid state relay will consist of two power chips and their controls, the LED chip and the various support structures previously described.
About the Author
Greegoo is a ISO9001 certified professional manufacturer and exporter of thyristor diode modules, href="http://www.greegoo.com">solid state relay, phase control thyristors, rectifier diodes, circuit
breakers, switching power supply, magnetic and dc contactors, proximity and photoelectric sensors, safety light
curtains, limited switches, digital panel meters, current transformers and switchgears etc.
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ALLEN BRADLEY PLC SLC500 CPU & 75I/O DC IN TRIAC OUTPUT $999.99 |
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Omron C500-OA225 C500OA225 32 Triac Output Module NIB $549.95 |
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C500-OA225 New In Box Omron PLC Triac Output 3G2A5-OA225 C500OA225 3G2A5OA225 $499.99 |
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Allen Bradley 1747-L20B Ser B PLC W/12 120V INPUT & 8 TRIAC OUTPUTS AC POWER $472.49 |
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C500-OA222 New In Box Omron PLC Triac Output 3G2A5-OA222 C500OA222 3G2A5OA222 $459.99 |
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Reliance Shark 45C965 Triac Output Module 45C-965 $399.99 |
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NIB OGDEN ETR-8130 TEMP CONTROL 8130-3144-11 INPUT: 90-264VAC OUTPUT: TRIAC $300.00 |
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AB Allen Bradley SLC500 Triac Output Module CAT1746-OA16 *NIB* $300.00 |
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RELIANCE PLC AUTOMAX TRIAC 120V OUTPUT MODULE 45C965 $299.00 |
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RELIANCE PLC AUTOMAX TRIAC 120V OUTPUT MODULE 45C965 $299.00 |
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QY22 Mitsubishi PLC New In Box 16 Point Triac Output Card $279.99 |
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Reliance Electric Triac Output Module 45C965 $250.00 |
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Allen Bradley PLC Output 1746-OA8 8PT Triac (4622) $249.99 |
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C200H-OA223 Omron PLC Triac Output C200HOA223 $199.99 |
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C200H-OA224 Omron PLC Triac Output C200HOA224 $199.99 |
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Allen Bradley SLC 500 Triac Output Module 1746-OA16 NR! $199.95 |
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OGDEN ETR-8130 TEMP CONTROL 8130-314411 INPUT: 90-264VAC OUTPUT: TRIAC $185.95 |
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NIB Omron 16Pt TRIAC Output Module CS1W-0A211 OA211 $185.00 |
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*SEALED* ATS NL1020 2623D02G02 Westinghouse Numalogic Triac Output $178.18 |
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QY42P Mitsubishi Melsec-Q 64pt Triac Output Module $175.00 |
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OMRON OUTPUT MODULE CQM1-OD213 32POINT 0.1AMP TRIAC $174.99 |
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MITSUBISHI AY51 OUTPUT MODULE TRIAC SINK 32POINT 12/24V $164.99 |
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C200H-OA122-E Omron PLC Triac Output C200HOA122E $159.99 |
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EUROTHERM TEMPERATURE CONTROLLER TRIAC,LOGIC,LOGIC OUTPUT BOARD $150.00 |
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Allen Bradley SLC500 OUtput Triac Module Card 1746-0A8 $150.00 |
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Mitsubishi Output Module QY40P 16 Point Sink Triac 3959 $149.99 |
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OMRON SYSMAC C200H-OA222 OUTPUT MODULE 16pt TRIAC $149.99 |
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ALLEN-BRADLEY 1746-OA8 PLC AC 8 P TRIAC OUTPUT MODULE $149.90 |
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Mitsubishi AY51-UL Output module Melsec triac AY51UL $130.00 |
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C200H-OA222 Omron PLC Triac Output C200HOA222 $129.99 |
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180-2463 Pc Board Quad Triac Output Switch $119.99 |
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CUTLER-HAMMER D520TT1 TRIAC OUTPUT MODULE 6-120V A1 $100.00 |
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Barber - Colman 33-1092 Output Triac Board $100.00 |
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A1SY50 Mitsubishi PLC 16 Point Triac Output A1S-Y50 $99.99 |
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AY51 Mitsubishi Melsec 32point Triac Sink Output Module $95.00 |
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C-H Eaton 8570A-6501 Output Device Isolated Triac $90.00 |
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ALLEN BRADLEY 1746-OA16 TRIAC OUTPUT 16PT. SER.C SLC500 $85.00 |
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Allen Bradley 1746-OA16 SLC 500, Series D Output Module, Triac $82.00 |
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Mitsubishi, OUTPUT MODULE TRIAC SINK 32 POINT, AY51 $79.95 |
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Reliance Electric Triac Output Module 45C900 $75.00 |
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Allen Bradley 1746-OA8 Triac Output Card 1746OA8 B $69.95 |
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C-H Eaton 8574A-6501 Output Device Triac Series A1 $57.00 |
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Allen Bradley 1746-OA8 Triac Output Card 1746OA8 $49.95 |
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MITSUBISHI A1S-Y40 OUTPUT TRIAC SINK 16 POINT $45.00 |
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NOS! TRI-TRONICS DC POWER SUPPLY WITH DUAL TRIAC OUTPUTS SEPS-5 SEPS5 $44.95 |
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MISTUBISHI OUTPUT TRIAC BLOCK FX-8EYS-ES/UL $40.00 |
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Allen Bradley 1746-OA16 Triac Output Module Series D $40.00 |
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Allen Bradley 1746-OA16 Triac Output Module Series C $38.00 |
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Allen Bradley 1746-OAP12 Output Module 1 Amp Triac $35.00 |
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Allen Bradley 1746-OA16 Triac AC Output Module Ser. C $29.99 |
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Allen Bradley 1746-OA16 Triac Output Module Series A $28.00 |
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ALLEN BRADLEY SLC 500 TRIAC OUTPUT MODULE 1746-OA16 SER. D $27.95 |
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Mitsubishi AY51 Melsec Output Module Triac Sink AY51 $25.00 |
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BARBER COLMAN 33-1112-2 TRIAC OUTPUT A-12041-2 4169 $24.99 |
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Allen Bradley 1746-OA8 TRIAC Output Module #7215 $24.99 |
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Allen Bradley 1746-OA16 Output Module 1 Amp Triac $20.00 |
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Cutler-Hammer Output Device 8574A-6501 Triac New In Box $20.00 |
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NEW BARBER-COLMAN # A11770 3580 TRIAC OUTPUT # 33-1092 $19.60 |
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S212S02 Solid State Relay & Triac Output 12Amp 250V 1X $4.99 |
More Triac Output related items:
Automation is really a stage up from mechanization simply because it drastically lowers the human psychological and sensory specifications, whereas mechanization assists human operators using the muscular requirements for that function. Automation is regarded as one with the keys so as to facilitate a transaction. Banking and finance establishments innovated some methods to create sure that customers are supplied with their simple desires when looking for solutions from these suppliers. Hospitals along with other health-related fields also make utilization of automation to produce confident that right diagnoses are offered to their respective patients. This is the cause why industrial automation systems have been conceptualized.
