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LB11993W 데이터시트(PDF) 8 Page - Sanyo Semicon Device |
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LB11993W 데이터시트(HTML) 8 Page - Sanyo Semicon Device |
8 / 15 page LB11993W No.A0677-8/15 Block Diagram Reference voltage TSD circuit Rotor potision detection circuit VCC2 COM UIN VIN WIN VS_D UOUT_D VOUT_D WOUT_D RF_D GND 500 Ω 200 Ω 10k Ω 40k Ω 200 Ω VCC1 VCC1 VCC1 30k Ω 200 Ω 200 Ω 200 Ω 30k Ω FC1 FILTER CSLP2 CSLP1 FRC_D OSC STBY_D VCC1 30k Ω 200 Ω 200 Ω 75k Ω 1.5k Ω 100k Ω 500 Ω Mid-point control FC2 B B B +Vf 1.2V ref. voltage bias startup circuit Forward/rev VCC2 TSD Capstan bias circuits VCC1 R6 R6 VX+ α R4 R3 1.5 ×R5 R2 R2 2 ×R1 R1 R1 VX R5 R5 R5 R5 R5 R5 ANGLE WIN2 WIN1 VIN2 VIN1 UIN2 UIN1 FRC_C DEC2 DEC1 RS RLO1 RLM1 RLP1 RLO2 RLM2 VS_C UOUT_C VOUT_C WOUT_C RF_C STBY_C VH+ VH- FGOUT_C FGIN- FGIN+ SBD SBD VS-VX-Vf+2 α VX+Vf (VS/2)+ α VCC2 Upper/lower amplitude limiter VCC1 1.2V ref. voltage bias startup ckt. Cylnder bias circuits AMP1OUT AMP1IN- AMP2OUT AMP2IN- VCC1 AMP1IN+ AMP2IN+ DECORDER Soft switching drive circuit Timing control circuit Startup control circuit Forward/reverse Hall power supply voltage output circuit |
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