Universal DRSSTC Driver 2. Universal DRSSTC Tesla Coil Driver 2. Rev CThe. Universal DRSSTC Driver 2. Snapdragon810.png' alt='Driver Parallel Lines Heat' title='Driver Parallel Lines Heat' />Lancaster You Dont Really Want A Patent, Do You Don Lancasters Patent Avoidance Library. Don discusses many of the pitfalls of obtaining and keeping patents. A wound or injury is defined as disolution of the natural continuity of any of the tissues of the living body. Mechanical injuries are injuries caused to the body by. Pololu DRV8835 dual motor driver board for Raspberry Pi, top view with dimensions. Rev B Oct 2. 01. UD2. C is the newest. Driver Parallel Lines HeatherThe EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse or 0 to 3. V pulse if you solder. View and Download HP Laserjet,Color Laserjet P2035 user manual online. HP Laserjet,Color Laserjet P2035 User Guide. Laserjet,Color Laserjet P2035 Printer pdf manual. BU302 Series and Parallel Battery Configurations. BU302 Configuraciones de Bateras en Serie y Paralelo Espaol Learn how to arrange batteries to increase. For an example of using the HBridge motor driver, try checking out experiment 9 that is used in the SparkFun Tinker Kit This skill defines how difficult the. Published on Jun 14, 2013. Updated on Nov 28, 2017. Introduction I wanted to design a versatile driver circuit that could drive a half or fullbr. A dyesublimation printer or dyesub printer is a printer which employs a printing process that uses heat to transfer dye to a medium such as a plastic card, paper. Here is my take on Steve Wards Universal DRSSTC Driver 2 which I have. UD2. 7. The UD2 is THE benchmark DRSSTC. I came across Steves original UD2 a while. I wanted to. incorporate. In. addition, I thought it would also be a good idea to share a little bit. UD2 works and how to get one working, with the Tesla Coil. Hopefully this. will be a useful resource to hobbyists around the world. The UD2. 7 now in. C has since been. Hz DRSSTCs, 3. 5k. Hz large DRSSTCs with a full bridge of CM6. IGBTs. and even QCW operation see application notes below. This project will not be possible without the work of the following. Many thanks to Steve Ward for his generosity in sharing the UD2 with the. Update Datagridview From Backgroundworker Control more. Tesla Coil community, and for his permission for the modification and. Universal Driver. The UD2. 7 is. free for download for personal hobby use credit and all rights of the UD2 design goes to Steve Ward. Driver4_boxshot.jpg' alt='Driver Parallel Lines Heat' title='Driver Parallel Lines Heat' />Also, credit goes to the many improvements. Bart and Eric in the earlier V2. V2. 5 revision, which added lots of. At the moment Im quite happy with the UD2. C revision, and any new. I will be working on in the future. Feel free to drop me a note if. Quick Links. History and Overview. Theory of Operation. OC5/3M_HEAT_CONTENT/heat_content55-07.png' alt='Driver Parallel Lines Heat' title='Driver Parallel Lines Heat' />Schematic. Testing and Debugging. Tuning Phase Lead. Setting Over Current Detection. QCW Operation. Downloads. Latest Version V2. Rev C as of Jan 2. Schematic Rev C. Gerber Files of Rev C ready for production. Bill of Materials V2. Rev C. pdf  Populated Mouser Project. Order. Previous Version V2. Rev AB not recommended any more Schematic. UD2. 7. B schematic. Gerber Files ready for production V2. Rev A, 1. 5. Sept 2. See this. 4hv forum thread for questions. This page will also. If there are additional changes desired comments feedback. Quick Notes. 24. VDC Input. Small error in the UD2. A and B design which has been fixed in the. UD2. 7. C also does not apply if you are. AC input jack. Otherwise, there is a simple fix if you are using the. VDC input jack for the Rev A and B boards solder on a general purpose diode across the. V regulator from output to input i. C3. 3 C3. 3 sets the dead time for the. TL3. 11. 6 comparator hysteric feedback network for switching noise. The pads for the capacitor are increased in size for easy. Good values range from. F to 2. 2n. F. For large IGBTs at low switching frequency e. CM6. 00, use 2. 2n. F. For medium sized switches like CM2. F. works well change C3. F for operation above 2. Hz. For. faster small IGBTs such as TO2. IGBTs at higher frequencies, use 2. F. Adjust C3. 3 if noise. TL3. 11. 6. Fiber Units The UD2. ST type, and Industrial. Fiber Optics type. Use OPF 2. 41. 2T or HFBR 2. T for ST fiber receivers. Industrial Fiber optics IFD9. T or IFD9. 5C these are Active High, be. NOT buy the active low kinds. The fiber units are ORed together, so be sure to ONLY use one port for interrupter input to. They can be installed individually by. D1. 3 You can install both, only the. ST, or only the IF receiver to save cost. However, because the IF. ST receiver, you must. D1. 3 to prevent the interrupter line. Slot 7 Inductors These 7. M3 series. tunable inductors for phase lead adjustment can be bought or sampled. Inductance values varies depending on your switch and switching. Typical values include 7. M3 1. 23 9 1. H. works well with TO2. IGBTs, 7. M3 1. H, going up through 7. M3 2. 23 1. 7 2. H, 3. H, 3. 93 2. 9 4. H. CM2. H etc.   Use a flat head non magnetic or plastic. Output Drive UD2. To save cost, the second gate drive section can be removed. UCC Mosfet drivers and the push pull MOSFTs. Feedback I try to aim for about 1. A. of feedback current adjust your CT turns ratio appropriately. OCD Burden Resistor The OCD burden. R1. 7 is a single 5. R 2. W by default. For flexibility, an. R2. 8 is provided for an optional secondary. The comparator voltage should ideally be less than 7. V to keep. within the bounds of the comparator when on a 9. V rail. Setting OCD Current Limit Phase lead. See application notes below. UVLO Setting for UD2. B onwards UVLO. V or 4. V depending on. This is set in. UD2. A with a 3. 3k4. V rail giving about 3. V, for. the UVLO to trip when the 2. V line drops to 2. V or so.  In. onwards, R2. V drop. Tap point 2 TP2 is. R2. 9 for easy voltage adjustment. This can be. set to 3. V or 5. 0. V for the 4. V trip. Note that the maximum voltage the LM8. V. By default, R2. R resistance. This. V by default which should be adjusted. However, IF R2. 9 is set to say 0. R, this can place a very high voltage. V to the LM8. 36. Be careful. when installing R2. UD2. 7 List of Improvements Heat smearing 9. V regulator replaced with an. TO 2. 20 compatible if you want, with space for heatsink All other regulators replaced with SMD ones, reducing overall height. Added on board SMD LED for power indication Under voltage Lockout added Flattened ground plane and some re worked traces and component placing Added new 2. VDC input jack for use with small DC power supply instead. Improved solder pads for hard to solder components such as the dual. MOSFETs and some others Added series capacitor with 1. R resistor in parallel with 2u. F GDT. output capacitor to prevent burning out resistor in event of malfunction Improved silkscreen for easier use e. LED breakout jack now labeled. All through hole resistors are now flat instead of standing up, for. Some components changed to further reduce height of populated board Board edges rounded, mounting holes changed to circles, board size. Main component reference IDs e. C3. 3 maintained for easy discussion. Includes all improvements from UD2. Eric, such as added IF fiber optic input. OCD, and fixed errors Created BOM, documentation, and improved schematic New compact size of 2. More improvements for Rev B Rev C Improved silkscreen and component placing Additional optional gate drive capacitor for use in high pulse width. Added UVLO adjustment potentiometer for lock out adjustment or you. UVLO jumper Improved heat sinking capabilities of 2. V and 5. V linear regulators. Fixed error on 2. VDC rail with now higher AC input range of 1. VAC. nominal and 2. VAC max Yet more improvements to silkscreen including diode direction labels. Board layout of UD2. C showing top traces red and bottom blue with. For more information documentation, please read. July 2. 01. 4 History What is the UD2 The UD2 is a universal DRSSTC driver controller board. Steve Ward and is an evolution of this UD1. The. UD2 accepts a fiber optic interrupter input. GDTs for DRSSTC operation. Its. main feature is an adjustable phase lead controller. It has had a proven. UD1. 3b. Steve Ward created the original Universal DRSSTC Driver. UD from now on back in 2. DRSSTCs, yet powerful. It featured the. usual primary feedback circuit with a flip flop, optical interrupter. OCD as well as robust MOSFET driven. Gate Drive Transformer outputs. Version 1. 3b was popularized on his. UD2, 2. 1, 2. 5. In the quest for a better controller, Finn Hammer came. Phase Lead in his driver a feature which he called. Prediktor. In essence, a little bit of phase lead is added to the. The result is that the power transistors can. IGBTs have. a non zero switching time, and switching earlier allows for perfect zero. From this, Steve Ward. UD2, which uses this idea. LC feedback network.