Products/Services for Pspice SCR Subcircuit
-
SCR Power Controllers - (150 companies)Silicon controlled rectifier (SCR) power controllers precisely regulate output power to resistive heating loads such as industrial furnaces and ovens. They generally operate on either zero-crossing or phase angle control. SCR power controllers...SCR ControlPhaseOperating Voltage -
SCR Power Supplies - (31 companies)SCR power supplies use silicon controlled rectifier (SCR) topology to provide well-regulated voltage and current output. SCR power supplies use silicon controlled rectifier (SCR) topology to provide well-regulated voltage and current output. Silicon... -
Selective Catalytic Reduction (SCR) Systems - (70 companies)Selective catalytic reduction (SCR) systems inject ammonia into boiler flue gas and pass it through a catalyst bed where the nitrogen oxide gas (NOx) and ammonia react to form nitrogen and water vapor. Selective catalytic reduction (SCR) systems... -
Silicon Controlled Rectifiers (SCR) - (193 companies)Silicon controlled rectifiers (SCR) are four-layer (PNPN) thyristors with three terminals: an input control terminal (gate), an output terminal (anode), and a terminal common to both the input and output (cathode). SCRs are used mainly with high... -
Diacs - (65 companies)Diacs are bi-directional diodes that switch AC voltages and trigger silicon controlled rectifiers (SCRs) and triacs. Except for a small leakage current, diacs do not conduct until the breakover voltage is reached. Diacs are bidirectional diodes... -
DC Power Supplies - (1238 companies)DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies...
-
Triacs - (164 companies)Triacs are three-terminal silicon devices that are configured in an inverse parallel arrangement to provide load current during both halves of the AC supply voltage. They are often used to control motor speed.
-
Optocouplers - (214 companies)...and a photosensor -- typically a photoresistor, photodiode, phototransistor, silicon-controlled rectifier (SCR), or triac. Both of these elements are separated by a dielectric (nonconducting) barrier. When input current is applied to the LED, it switches...
-
Thyristors - (432 companies)...the anode-to-cathode critical rate of voltage rise. There is only one way to cause a Shockley diode to stop conducting, and that is to reduce the current going through it to a level below its low-current dropout threshold. Silicon-Controlled Rectifiers (SCR...
-
Medical Power Supplies - (158 companies)Medical power supplies are power supplies designed to produce conditioned outputs for medical devices, instruments, and equipment.
Product News
-
Ducon Environmental Systems
SCR Catalyst for DeNOx Systems Ducon's SNCR DeNOx Systems work by injecting ammonia or urea into the radiant and convection regions of a boiler to treat the flue gases, so the reduction reaction can take place. The reagent comes in contact with the NOx in the flue gas within a specific temperature range. For urea, this range is approximately 1600 F to 2100 F. For ammonia, the range is lower at 1500 F to 1800 F. (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Ducon Environmental Systems -
Branch Environmental Solutions
How does the SCR technology work? How does SCR work?. Catalysts perform by lowering the temperature required to allow a chemical reaction to occur. In this case, a reduced nitrogen compound (ammonia or urea) is introduced into the air. The "oxidized" chemical (NO or NO2 or both) then reacts with the other nitrogen compound forming elemental nitrogen and water. The common sources of neutralizing chemical are either ammonia, which is a gas at room temperature, ammonia solution or urea, which is dissolved in water and must... (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Branch Environmental Solutions -
Branch Environmental Solutions
What is Selective Catalytic Reduction -(SCR) SELECTIVE CATALYTIC REDUCTION. Removal of Oxides of Nitrogen - N0x can be achieved by injecting Ammonia into the air and passing the resulting mixture over a catalyst. Selective Catalytic Reduction - SCR involves the use of a catalyst that is selective to promote the reaction of Ammonia and N0x to form Nitrogen and water. Several different forms of Ammonia can be used. That is, you can inject a water solution of Ammonia, Ammonia as a dry gas, or Urea. How does SCR work?. Catalysts perform... (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Branch Environmental Solutions -
Automationdirect.com
STELLAR SR35 soft starters STELLAR SR35 soft starters are fully digital, offered in three frame sizes to control 1- and 3-phase AC induction motors, and provide overload and SCR failure protection (read more) -
DigiKey
TDK StandarD Series Disk Varistors flexibility. The coating of the discs consists of a flame-retardant synthetic resin according to UL 94 V-0. The SIOV varistors are certified according to UL, CSA, VDE, and IEC. PSpice (R) models are available for all products in the StandarD S07 and S10 Compact series. The optimized compact design and excellent electrical characteristics enable the space-saving use of the S07 and S10 StandarD Compact types in numerous applications such as LED lighting, switching power supplies, and household... (read more)Browse Varistors Datasheets for DigiKey -
Cornell Dubilier
Type QAS, Arc Suppressor/Snubber Network Type QAS will extend the operating life of electronic and electro-mechanical devices by reducing and/or eliminating the electrical arcing, noise, and EMF. These electrical conditions often cause early failures in relays, switch contacts, and solid-state components such as SCRs and TRIACs. Noise and arc suppression. RC Snubber Network. Relay contact protection. Noise reduction on controllers and drives. EMI/RFI reduction. dv/dt suppression. Coated with flame retardant epoxy. Applications Include... (read more)Browse Capacitors Datasheets for Cornell Dubilier -
Ducon Environmental Systems
Evaporative Gas Coolers Ducon supplies custom engineered evaporative gas coolers and conditioners to cool the gases exhausting from furnaces, kilns, and boilers. Ducon utilizes its proprietary spray nozzles to accurately control the humidity in the gas so as to minimize the corrosion in the equipment and completely evaporate all water droplets. Ducon has designed gas coolers to handle over 1,000,000 ACFM in a single unit. (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Ducon Environmental Systems -
Ducon Environmental Systems
Revolutionize Furnace Cooling with Gas Coolers Ducon supplies custom engineered evaporative gas coolers and conditioners to cool the gases exhausting from furnaces, kilns, and boilers. Ducon utilizes its proprietary spray nozzles to accurately control the humidity in the gas so as to minimize the corrosion in the equipment and completely evaporate all water droplets. Ducon has designed gas coolers to handle over 1,000,000 ACFM in a single unit. (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Ducon Environmental Systems -
Ducon Environmental Systems
Dry Collection Air Pollution Control Systems Cyclones. High-Efficiency Cyclones. Baghouse Filter. SCR DeNOx & VOC Systems. Selection Catalyst Reduction. Dry FGD. Dry ESP - Electrostatic Precipitator. Dry Flue Gas Desulfurization (SDR) System... (read more)Browse Baghouses and Baghouse Filters Datasheets for Ducon Environmental Systems -
Ducon Environmental Systems
What is Flue Gas Desulfurization FGD? Flue Gas Desulfurization, also known as FGD, is a set of technologies used to remove sulfur dioxide from exhaust flue gases in sulfur oxide emitting processes such as Coal Fired Boilers, Pulp and Paper Plants, Oil Fired Boilers, Diesel Generators, Power Plants, Industrial Boilers and Waste Incinerators. Wet Flue-Gas Desulfurization Systems, include Spray Towers, Chemical Absorption Towers, and Ventri Rod Absorbers. Learn More from Ducon (read more)Browse Selective Catalytic Reduction (SCR) Systems Datasheets for Ducon Environmental Systems
More Information
Indicates content that may require registration and/or purchase.
-
Power Electronics: Converters Applications and Design 3rd Edition Complete Document
Solution The PSpice circuit and the input data. file, where the thyristors are represented by a subcircuit called SCR , are included in the Appendix at the end of this chapter.
-
Modelling Photovoltaic Systems Using PSpice
… pocket calculator 258 Solar Radiation 2 Solar Radiation availability 15–17 Solid angle 247, 261 Solstice 339 Space charge region, SCR 333 Space radiation 64–68 … … total 24 base 23 PSpice model 25 Spectrum of … … Strong, S.J. 243 Subcircuit 7, 8 Sunmaster 220 …
-
Modeling thyristor and diodes; on-state voltage and transient thermal impedance, effective tools in power electronic design
The model for the SCR or Diode is diagrammed in Figure 9, and the net list presented … impllementedas a Subcircuit in PSPICE . , 1OU- .
-
Physics-based MCT circuit model using the lumped-charge modeling approach
Popular circuit simulation packages, e.g., PSpice , do not support a pnpn device model such as the … To date, a behavioral subcircuit model shown in Fig. 1 is the only MCT model available. … model contains back-to-back connected npn and pnp transistors to model the SCR structure, with serially …
-
An MCT circuit model using the lumped-charge modeling technique
Popular circuit simulation packages, like MicroSim’s PSpice @,do not sup- port apnpn device model such as … To date, a behavioral subcircuit model is the only MCT model available. … model contains back-to-back connected npn and pnp transistors to model the SCR structure, with a …
-
Introduction to Modern Power Electronics
… SGSW, (b) two-gate switch, TGSW, (c) unidirectional switch, UDSW, and (d) generic SCR , are shown in … … voltage-source inverter in the Hyster Curr Contr.cir file is realized by subcircuit HCC as shown … The inductor-coupling PSpice device, K, is used to model transformers in isolated dc-to-dc converters.
-
Electro-thermal modeling of multi-megawatt power electronic applications using PSPICETM
… node Tj represents the virtual junction temperature rise The Net List for the SCR model used to … SUBCIRCUIT The actual test circuit is not included in the net list but would be inserted into … C. PSPICE ” .
-
An improved PSPICE model for simulation and analysis of thyristor commutation circuits in DC choppers
SUDHAKAR AND CHATTOPADHYAY:IMPROVED PSPICE MODEL FOR SIMULATION AND ANALYSIS OF THYRISTOR 545 ; Subcircuit defined x2 1 5 6 scr Ccom 1 4 4Uf ic=30.0 lres 4 79 ;0.12mhic …
-
Simple SCR and TRIAC PSPICE computer models
With the PSPICE ' 3.03 release in April 1987, an ideal voltage-controlled switch and an … A. SCR Model subcircuit are: .
-
An improved PSpice model for the MOS-controlled thyristor
… derived from the transistor-level equivalent circuit of the MCT by expanding the SCR model presented in … SUBCIRCUIT FILE LISTING FOR THE IMPROVED MCT MODEL FOR PSPICE .
