mps digital multiphase vr introduce · 2020. 5. 14. · •mps patented technology-simple, fast and...
TRANSCRIPT
![Page 1: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/1.jpg)
rev 20180504
MPS Digital Multiphase VR Introduce
SZ FAE Lori
Mar. 2020
![Page 2: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/2.jpg)
• Basic terminologies
• Multiphase VR control methods
• Multiphase VR current balance
• MPS multiphase VR road map
Outlines
![Page 3: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/3.jpg)
Basic Terminologies
![Page 4: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/4.jpg)
Phase and Rail
![Page 5: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/5.jpg)
VR/MTP/VID/DVID/CS/APS/Loadline(droop resistor)
• VR means voltage regulator
• MTP means multiple-time programmer
• VID is same as Vref of DCDC converter
• DVID means dynamic VID
• CS means current sense
• APS means auto phase shedding
• Loadline(droop resistor) shows as picture
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0 200.0
Ou
tpu
t V
olt
age
(V
)
Load Current (A)
VccMAX VccMIN VID1_Loadline Min V @ I_Min (V) Max V @ I_Min (V)
![Page 6: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/6.jpg)
• SVID Intel
• SVI2/3 AMD
• OVR NVidia
• PVID early Intel/POL
• AVS Arm-base IC
• PMBUS MPS and so on
Protocols: SVID/SVI2/3/OVR/PVID/AVS/PMBUS
![Page 7: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/7.jpg)
Multiphase VR Control Methods
![Page 8: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/8.jpg)
• Sophisticated pole and zero adjustment during operation
• Separated non-linear loop creates undershoot or ringback during tranisent
• Voltage mode control doesn’t guarantee cycle by cycle current sharing
Typical Voltage Mode Digital Control
X1
VORTN
VOSEN
Digital PID
Remote sense
DPWMPWM
ADC
p
ss
z
s
z
s
G
1
21
11
Non-Linear Transient
Loop
![Page 9: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/9.jpg)
• Separated non-linear loop creates undershoot or ringback during tranisent
Dual Loop COT Control
![Page 10: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/10.jpg)
• One fast loop takes care of both steady state and load transient
• MPS patented Technology-Simple, Fast and Fully Digital.
MPS Digital COT Control
X1
VORTN
VOSENCmp
set
DA
C
DC Calibration
DA
C
VID
Digital RampRemote sense
Digital
TON
PWM
200MHz
Clock
![Page 11: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/11.jpg)
Digital COT Control – Steady State
![Page 12: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/12.jpg)
Digital COT Control – Load Step Up
![Page 13: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/13.jpg)
Digital COT Control – Load Step Down
![Page 14: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/14.jpg)
Multiphase VR Current Balance
![Page 15: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/15.jpg)
• Zero tempco due to monolithic die current sensing
Intelli-Phase Current Sense Principle
PGND
VIN
SW
VIN 1
2
151617181921 20
SW
PGND
3
14
VCC
BST
AGND
CS
SYNC
PWM
VTEMP/FLT
11109875 6
PGND
PGND
PGND
PGND
PGND
PGND
SW
PGND
4
13
12
![Page 16: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/16.jpg)
On-Die Current Sense Advantages
![Page 17: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/17.jpg)
On-Die Current Sense Advantages
![Page 18: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/18.jpg)
Current Balance Introduce
![Page 19: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/19.jpg)
Current Balance Introduce
• Why dynamic current sharing for multiphase is difficult for voltage and current control
• In load step up mode, the leading phase would increase PWM on time dramatically, but due to PWM switching cycle delay, the lagging phase supports less current
• Huge current stress on one phase during fast load step up
Load
Current
VOUT
IL1 IL2
COMP
Huge phase current
difference
![Page 20: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/20.jpg)
Current Balance Introduce
• Reducing PWM off time to support load step up, while PWM on time keeps constant
• PWMs are evenly distributed to each phase , so each phase carries the average current even transient
• Inherently much better dynamic current sharing than voltage and current control
IL1 IL2
Vref
VOUT
PWM1
PWM2
Fixed On
Time
Load
Current
Phase
blanking time Min off time
![Page 21: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/21.jpg)
MPS Multiphase VR Road Map
![Page 22: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/22.jpg)
Multiphase VR Road Map
Intel IMVP
AMD Gaming SoC
AMD Server Processor
Nvidia GPU
AI Processor
Intel Xeon Processor MP2955A7-ph/ 2-rail
VR13
MP29657-ph/ 2-rail
VR13.HC
MP29758-ph/ 2-rail
VR13.HC
MP297212-ph/ 2-rail
VR13.HC
MP28535-ph/ 2-rail
SVI2
MP28559-ph/ 2-rail
SVI2
MP285213-ph/ 2-rail
SVI2
MP2888A10-ph/ 1-rail
OVR4+
MP2886A6-ph/ 1-rail
OVR4+
MP2884A4-ph/ 1-rail
OVR4+
MP29883-ph/ 1-rail
OVR3i
MP29657-ph/ 2-rail
AVS
MP29758-ph/ 2-rail
AVS
MP285213-ph/ 2-rail
AVS
MP2949A6-ph/ 3-rail
IMVP8
MP2940A3-ph/ 1-rail
IMVP9
MP2950A6-ph/ 1-rail
IMVP9
MP28535-ph/ 2-rail
SVI2
MP29718-ph/ 2-rail
VR14Sampling
Released
MP29266-ph/ 3-rail
AVS
MP297312-ph/ 2-rail
VR14
2017 2018 2019
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
MP288216-ph/ 2-rail
AVS
MP28559-ph/ 2-rail
SVI2
MP285213-ph/ 2-rail
SVI2
MP29455-ph/ 2-rail
SVI2
MP2979A6-ph/ 3-rail
IMVP8
MP29785-ph/ 2-rail
AVS
MP297212-ph/ 2-rail
AVS
![Page 23: MPS Digital Multiphase VR Introduce · 2020. 5. 14. · •MPS patented Technology-Simple, Fast and Fully Digital. MPS Digital COT Control X1 VORTN VOSEN Cmp set D A C DC Calibration](https://reader036.vdocuments.net/reader036/viewer/2022081411/60ace57a5cdb036044752572/html5/thumbnails/23.jpg)
Thank you