Delta Sinewave Converter   Overview
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Delta Sinewave Converter Overview

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Delta\'s patented AC to AC Sine Wave Converter for applications requiring clean programmable AC power.

Delta\'s patented AC to AC Sine Wave Converter for applications requiring clean programmable AC power.

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Delta Sinewave Converter Overview Presentation Transcript

  • 1. Energy Systems gy y Delta Energy SystemsAC to AC Sine Wave Converter
  • 2. Energy Systems gy y Basic Requirements from Customers Supply AC Load in range from 0-230Vrms (AC current!) Adjustable AC output voltage via signal interface Temperature characteristic of load is extremely non-linear (very low cold resistance) p y ( y ) no galvanic separation between input / output required Meet EN61000-3-2 (Harmonics) Meet EN61000-3-3 (Flicker) EN61000 3 3 no hold up time High efficiency Vmains VLoad Compact design Light weight Cost efficient design control© 11-02-08 Delta Energy Systems 2
  • 3. Energy Systems gy y Load Type: Fuser Lamp Resistance [Ohm]Temperature Characteristic: 2150W @ 230V fuser lamp 30.00 extremely non-linear temperature characteristic 25.00 2 @ 0Vrms 24 @ 230Vrms 20.00 R 0V 1 15.00  10.00 R 230V 12 230V 5.00 0.00 0V 50V 100V 150V 200V 250V 2150W @ 230V fuser lamp Voltage© 11-02-08 Delta Energy Systems 3
  • 4. Energy Systems gy y Basic requirements for useful solutionFeaturesOutput voltage / current must have same form and function for resistive load like input voltage (sinusoidal)  no harmonics generated (EN61000-3-2)Amplitude of output voltage / current must be regulated according control interface  0 100% continuos mode 0-100%Continuously flowing input / output current in all operating points, no periodic or aperiodic interrupts in static operating point  no flicker generated (EN61000-3-3)Soft transition between operating points  increases load dynamic range while still meeting flicker requirements y g g q© 11-02-08 Delta Energy Systems 4
  • 5. Energy Systems gy y AC/AC Converter: Line Synchronization 1 T4 L 1 T3 VoutVLine Buck Converter PWM control T1 2 1,2 50kHz © 11-02-08 Delta Energy Systems 5
  • 6. Energy Systems gy y AC/AC Converter: Line SynchronizationAdvantages: polarity detection of line voltage is very fast VLine  7-15s after zero-crossing  g no overlapping of Gate signals for T3, T4 demagnetizing of choke is guaranteed T3 safe operation during dead time because of low voltage / low energy T4 15-30s 15-30s© 11-02-08 Delta Energy Systems 6
  • 7. Energy Systems gy y Sinewave Converter: test results  Step response Vout = 20V 200V Pout = 7.5%  75% VLine = 230V  Vout 100V/DIV/10ms  internal control signal© 11-02-08 Delta Energy Systems 7
  • 8. Energy Systems gy y Sinewave Converter: test results  Step response Vout = 200V 20V Pout = 75%  7.5% VLine = 230V  Vout 100V/DIV/10ms  internal control signal© 11-02-08 Delta Energy Systems 8
  • 9. Energy Systems gy y Sinewave Converter: ideal solutionAdvantages Sinewave Converter does not create any harmonics  easy to meet EN61000-3-2 (Harmonics) y ( ) To meet Flicker requirements does not depend on control mechanism any more. It only depends on load dynamics which can be maximized by use of the Sinewave Converter. Soft transition between operation points enlarges dynamic range while still in line with flicker requirements.  easy to meet EN61000-3-3 (Flicker) All kind of control interfaces can be implemented f output voltage/current/power control ki d f t li t f b i l t d for t t lt / t/ t l  digital (serial, parallel), analog, PWM, others Peak current limitation  tolerant for overload conditions© 11-02-08 Delta Energy Systems 9
  • 10. Energy Systems gy y Sinewave Converter: ideal solutionAdvantages Sinewave Converter offers linear and continuous control characteristic  complete range between 0-100% programmable p g p g Vout 100% Efficiency 98%  simple thermal handling, high power density 75% Si l and light d i Simple d li ht design  easy to integrate into end-user application 50% Programmable limitation of output voltage range (0-90Vrms) offers use all over the world with only 25% one type of load / module  simplifies logistics control 25% 50% 75% 100% signal© 11-02-08 Delta Energy Systems 10
  • 11. Energy Systems gy y Use of Sinewave ConverterApplications copy machines (fuser lamps) IR lamps printing machines, laser printers heaters for process control (medical, biological, physical, chemical) temperature regulating systems (technical applications) Dryers illumination motor drives, motor control steam generation© 11-02-08 Delta Energy Systems 11
  • 12. Energy Systems gy y Sinewave Converter = Electronic VariacComparison traditional variac: 4kW, 230V, 50Hz 265x405x415mm, 1.47W / inch3 44kg, 91W / kg Sinewave Converter: 4kW, 230V, 50Hz 105x95x315mm, 20.9W/inch3 2.1kg, 1.9kW/kg V1 Sinewave Converter: V2 Equivalent Circuit Diagram© 11-02-08 Delta Energy Systems 12
  • 13. Energy Systems gy y Applications: 3x900W for copy machine  C Customer: N h l d Netherlands  Application: high speed copy machine  Heater: infrared fuser lamp (900W)  Modules: 3 modules used per copy machine (3x900W)  Cooling: convection cooling  Size: 130x70x195mm / 1kg Vin: 190Vac - 264Vac Vout: 0-230Vac Pout: 0-900W (0-4Aac) Control: digital, 6 Bit parallel for output g , p p voltage control© 11-02-08 Delta Energy Systems 13
  • 14. Energy Systems gy y Applications: 2400W for copy machine C Customer: USA Application: high speed copy machine Heater: infrared fuser lamp (2400W) Modules: 2 modules used per copy machine Cooling: fan cooled Vin: 190Vac - 264Vac Vout: 0-230Vac Pout: 0-2400W (0-10.5Aac) Size: 77x90x305mm / 2.0kg Control: PWM, 500Hz, 0-100% duty cycle for output voltage control © 11-02-08 Delta Energy Systems 14
  • 15. Energy Systems gy y Applications: 4000W for printing machine C Customer: USA Application: high speed printing machine (fuser lamp) Heater: infrared heating tube (4000W) for toner fixing Modules: 2 modules used per copy machine Cooling: fan cooled Vin: 190Vac - 264Vac Vout: 0-230Vac Pout: 0-4000W (0-18.5Aac) Size: 105x95x315mm / 2.1kg Control: PWM, 500Hz, 0-100% duty cycle for output voltage control© 11-02-08 Delta Energy Systems 15
  • 16. Energy Systems gy y Applications: 540W / 750W for diagnostics C Customer: G Germany Application: PCR analysis (Polymerize Chain Reaction) Heater: linear resistor for process control Modules: 1 module combined with power supply Cooling: fan cooled Vin: 90Vac - 264Vac Vout: 0-90V Pout: 0-540W / 750W (0-6A / 8.5A) (2 versions) Control: serial, 12 Bit high speed for output voltage control Accuracy: accuracy for temperature control < 0.5°C required© 11-02-08 Delta Energy Systems 16
  • 17. Energy Systems gy y Applications: 800W for blood dialysis C Customer: G Germany Application: blood dialysis Heater: thick film resistor for process control Modules: 1 module combined with power supply Cooling: fan cooled Vin: 90Vac - 264Vac Vout: 0-90V Pout: 0-800W (0-10A) Control: PWM, 500Hz, 0-100% duty cycle for output voltage control© 11-02-08 Delta Energy Systems 17
  • 18. Energy Systems gy yPatent Status US P Patent granted: US 5,932,934 d 932 934 German Patent granted: DE 197 10 161 C2 European Patent pending: EP 0 865 150 A3© 11-02-08 Delta Energy Systems 18
  • 19. Energy Systems gy y Questions Contact Don Nasca Delta Energy Systems 503-703-0208 dnasca@delta-corp.com© 11-02-08 Delta Energy Systems 19