1 / 22

Fairchild Power Switch(FPS) Charger / Adapter / Aux. power Power Conversion

Fairchild Power Switch(FPS) Charger / Adapter / Aux. power Power Conversion. Introduction of Fairchild Power Switch(FPS). Optimal Solution for Off-Line Switch Mode Power Supplies (SMPS). SMPS Cost Down. 1 Package Product. Reduced Board Space Increased Reliability. PWM IC. MOSFET.

michel
Download Presentation

Fairchild Power Switch(FPS) Charger / Adapter / Aux. power Power Conversion

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(FPS) Charger / Adapter / Aux. powerPower Conversion

  2. Introduction of Fairchild Power Switch(FPS) • Optimal Solution for Off-Line Switch Mode Power Supplies (SMPS) SMPS Cost Down 1 Package Product • Reduced Board Space • Increased Reliability PWM IC MOSFET External Devices Additional Functions

  3. Structures of FPS • Optimal Solution for Off-Line Switch Mode Power Supplies (SMPS) • Reduced Board Space • Increased Reliability

  4. Auxiliary power & PC SMPS Color TV VCR, SVR, STB & DVCD Mobile phone PDA Printer & OA Adaptor for Camcorder MP3 Note PC Adaptor Monitor FPSTM Target Applications FSCQ0565RT FSCQ0765RT FSCQ0965RT FSCQ1265RT FSCQ1465RT FSCQ1565RT FSCQ1565RP FSDH321Z FSDM0170RNB FSDM0270RNB FSDM0370RNB Power Supply FSDx321 FSDL0170RNB FSDx0265RNB FSDx0365RNB FSD200B FSG500 FSD210B FSD211 FSDM0465RB FSDM0565RB FSCM0565R FSDM07652RB FSCM0765R FSDM1265RB FSES0765RG FS8S0765RCB FS8S0965RCB FS6S1265RE FS6S1565RB

  5. Features and Advantages • Features • Optimal Solution for Off-Line SMPS • Fully Avalanche rated and 100% tested SenseFET for 2chip based FPSTM • Pulse-by-Pulse Current Limiting • Improved Reliability through Various Protection Functions(Over Voltage, Over Load, Abnormal Over Current, Thermal Shutdown) • Precision Fixed Operating Frequency (50/70/100KHz) • Ability to synchronize with external signal helps eliminate screen noise (FS6S, FS8S series) • Quasi Resonant Converter for low EMI and high efficiency (KA5Q series) • Auto Burst Mode Operation for low power consumption in standby mode • Built in Soft Start Function to reduce start up stress in transformer • Built in start up switch to reduce external component and power consumption • Frequency modulation to improve EMI performance • Advantages • Reduced Board space (Simple & Compact Circuit Design) • Decreased Line Process and Field Failure Rate  Enhanced Productivity • Broad Application Coverage with Extensive Expertise • Blue line shows added features of green FPSTM

  6. FSD200B / FSD210B2nd generation 1Chip FPS • □ Features • Single Chip 700V SenseFET Power Switch • Precision Fixed Operating Frequency with Frequency Modulation  134kHz±4kHz • Internal Start-up Switch & Soft Start up • Under Voltage Lockout with Hysterisis  8.7V/6.7V (FSD210), 7V/6V (FSD200) • Over Load Protection (OLP) • Auto-restart mode • □ Advantages • Low Power Consumption in Standby Mode (Burst Operation)  0.10W under @240Vac (FSD210) • Minimum External Components  Without bias winding, resistor, diode (FSD200)

  7. Block Diagram of FSD200B Built-in Start up. Frequency Modulation Voltage Mode Control Burst Control Protection Peak Current Limit Soft Start

  8. Block Diagram of FSD210B Built-in Start up. Frequency Modulation Voltage Mode Control Burst Control Protection Peak Current Limit Soft Start

  9. System Circuit Diagram Low cost EMI filter by Frequency Modulation FSD210/200 does not require Y-cap components in blue block FSD200 does not require components in red block

  10. FSDH Series Vstr operating 1 Vstr Drain Vcc 2 2 1

  11. Stand-by Power Loss Test Result with FSD210B Stand-by Power Loss at Output No Load Condition

  12. FSD210B Demo Board – No Y-cap

  13. FSD210B Demo Board – No Y-cap @ 220VAC & Neutral, 5.1Vout/8ohm load @ 220VAC & Live, 5.1Vout/8ohm load • Standby power • Test equipment : Yokogawa PZ 4000 • 240V : 0.06W • 265V : 0.07W

  14. Burst Operation & Power Loss • FSD210 can meet low standby power under 0.1W at 265Vac & no load • Standby power of FSD200 is higher because it’s internal start-up block connected to rectified AC line consumes power more • FSD200(rectified AC line max 375Vdc*Iop) vs. FSD210(Vcc bias winding max 20V*Iop)

  15. Burst Operation Waveforms #1 Drain, #3 Vfb, #4 Idrain Burst operation @ 85Vac, No load Burst operation @ 265Vac, No load

  16. Features: Built in Start up with Soft Start • The built in startup provides trickle current until the supply reaches a present supply voltage threshold called Vstart • Switching starts and the peak current is gradually ratcheted up in fixed increments over a milliseconds • This soft startup mechanism helps prevent high current during startup from damaging the components in the SMPS Drain voltage Drain current Start up @ 265Vac Start up @ 85Vac or short circuit

  17. Frequency Modulation for EMI ◆ Frequency Modulation (FSD210) Modulation Frequency = 268.8Hz Period = 3.72mS Step = 16 step(rising)+16 step(falling) Maximum Switching Frequency = 141.8kHz (typ 138kHz) Minimum Switching Frequency = 133.6kHz (typ 130kHz)

  18. BUCK Converter Circuit with FSD210B

  19. FSDM311 GND DRAIN Vcc DRAIN Vfb DRAIN NC Vstr • Features • BCDMOS controller + Strong Avalanche CFET • Built in Start up Circuit • Burst Mode Operation • Internal Soft-start Circuit • New 8DIP PKG for wide creepage • Target Application • Max 8watt Charger with universal input range • Max 20watt auxiliary P/S for PC with 220V input • Launching Schedule 8DIP

  20. Block Diagram of FSDM311 Built-in Start up Voltage Mode Control Soft Start Protection Peak Current Limit Auto Restart

  21. FSDM311 Application

  22. Selection Guide for Charger / Adaptor / Aux. Power Protection Option – OLP(Over Load Protection), OCL(Over Current Latch), OVP(Over Voltage Protection), TSD(Thermal Shutdown) (1) Open Frame Pin(max) Test Condition : Flyback Converter, Discontinuous Current Mode, Dmax=0.5, Vin(dc)=100V

More Related