1 / 13

Fairchild Power Switch

Fairchild Power Switch. Sep, 2004 Power Conversion. GFPS for High Power Applications. Power Range : 100 ~ 300Watt System Configuration Qusi-Resonant with multi-output for CTV Sync Frequency with multi output for CRT Monitor Forward or Half bridge with multi output for PC

bijan
Download Presentation

Fairchild Power Switch

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Fairchild Power Switch Sep, 2004 Power Conversion

  2. GFPS for High Power Applications • Power Range : 100 ~ 300Watt • System Configuration • Qusi-Resonant with multi-output for CTV • Sync Frequency with multi output for CRT Monitor • Forward or Half bridge with multi output for PC • Multi power stage for PDP/ LCD TV • Development Direction • Low Stand by requirement • CTV/Monitor - under 1.0Watt • PC SMPS - under 1.0Watt @ Po=0.5Watt • High Efficiency requirement • 300Watt * 90% efficiency  30watt power loss • Need to reduce switching loss(soft switching) 3Chip 1Pkg for resonant solution • FSC Solution • QRC Applications : FSCQ-Series • Silver Box/LCD TV : FSD1000 Display & Computing - CRT Monitor - CRT TV - Projection TV - LCD TV / PDP - Silver Box - NoteBook Adaptor

  3. Selection Guide for C-TV ** Under Development Green FPS provide under1watt stand by power consumption

  4. Compact and cost effective design with FPS FPS includes SenseFET PWM controller Optimized Gate drive circuit Additional function - Quasi-resonant switching - Soft start - Burst operation Protection function - Over load protection - Over voltage protection - Over current protection - Pulse by Pulse current limit - Over temperature protection

  5. Features and Advantages of FSCQ-series • Features • - Optimized for Quasi-resonant converter (Low EMI and High Efficiency) • - Fully avalanche rated and 100% tested SenseFET • - Pulse-by-pulse current limiting • - Improved reliability through various protection functions • : Over voltage, Over load, Over current, Thermal shutdown • - Advanced Burst operationfor low power consumption in standby (<1W) • - Internal Soft start function (20ms) • - Extended Quasi-resonantoperation for wide operation range • - Reduced startup and operating currents • Advantages • - Reduced board space (simple & compact circuit design) • - Decreased assembly time and field failure rate Enhanced productivity

  6. FSCQ-series Functional Block Diagram QRC Control Burst Mode Operation SenseFET OLP Current Mode Control AOCP TSD OVP Auto Restart Mode Latch Mode

  7. Burst operation - Output drop circuit • Normal mode : Vo1 (B+) is regulated • Standby mode : Vo2 is regulated

  8. Power Consumptions in standby mode Minimum voltage of linear regulator = 8.0V B+ output : open

  9. Pin Compatible : TO-220F-5L & TO-3PF-7L Same pin layout 1.5mm 1.5mm 1.5mm S F/B S F/B NC 3.18mm 3.18mm D Vcc Sync D Vcc Sync NC 2.54mm 1.5mm 2.54mm 1.5mm 2.54mm 1.5mm 1.5mm TO-3PF-7L TO-220F-5L

  10. FPS Comparison for Color TV

  11. PDP Power Supply - System Block Diagram Address Driver Y Sustain Block X Sustain Block Clock DATA MCU & Logic PANEL V Sync H Sync Next page for more detail Power Supply ・ FPSTM ・ PFC/PWM Energy Recovery Block Energy Recovery Block

  12. PDP Power Supply - Block Diagram A +190V (+85V) ML4824(Combo) +180V / 240W B C 400V EMI FILTER PFC VSUSTAIN VSET KA5L0380R +100V / 20W Flyback D Two switch Forward Boost 420W VERASE KA5L0380R +110V / 20W Flyback VSCAN KA5L0380R +90V / 30W E Flyback Stand by KA5L0380R +5V / 3.5W F Flyback VADDRESS FS7M0880 +70V / 150W Flyback +3.3V, +6V +12V, +15V, +33V VMULTI FS7M0880 Flyback / 80W VAUDIO AMP FS7M0880 +18V / 40W Flyback • Fly back, Forward and half bridge topology (400W~600W) • Low standby power, under 1W required • Active PFC required (Combo or PFC only) • Focus device

  13. Power Solution for PDP ML4824(Combo)+FET 380~ 400V EMI FILTER PFC ML4821 VSUSTAIN KA7500C+FET 200W +180V 120W +60V VADDRESS FS7M0880 70~90W +3.3V +5V +12V +15V others Logic Board Image Board Sound Board VMULTI FS7M0680 3W +5V Stand by KA5M0280R

More Related