6-Phase Boost Converter Design

psuchomel

psuchomel

Input 48–58V, output 72V nominal, 3.6kW, efficiency target 96%, enable via 3.3V logic.

flux

Your goal: 6-phase interleaved boost, 48–58 V in to ~72 V out, 3.6 kW, 300–500 kHz, 96% target, 3.3 V enable. I’ve prepared a plan:
  1. Freeze specs: per-phase f_sw, ripple targets, UVLO/OVP/OCP/OTP, 3.3 V enable and soft-start.
  2. Choose architecture/control: 6-phase interleaved, current-share, per-phase sensing, fault latch.
  3. Size power stage: inductors (≤60% of Imax, ≤90% of Isat; ripple 20–40%), FETs/rectifiers, drivers, snubbers, IO caps, EMI filter.
  4. Capture schematic and select parts; implement enable/protections; generate BOM.
  5. Simulate (transient/efficiency/thermal), then PCB layout and reviews.
Click Start to run this plan, or tell me what you’d like to change.
phugheshtown

phugheshtown

add short circuit protection

flux

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this is a schematic of a 1S BMS, how hard would it be, to make it 4S capable ins...
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what is the current through R5
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add an audio amplifier
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please explain what U1 does.
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what does this circuit do
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list all U1 pins in a table format. For each pin provide its pin number, pin nam...
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please explain what VCC, R5, U2 do.
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why R5 is 220?
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please explain what R6, R12, R26, R30, R25, R8, R29, R22, R24 do.
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list all ICs and the decoupling capacitors attached to each. Ensure to include a...
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please explain what R1 does.
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can I change this with ATTINY441
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are there any issues in this project?
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create a detailed step by step plan table for this project to verify its functio...
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create a detailed step by step plan table for this project to verify its functio...
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explain this project.
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can you cannect 2nd pin of attiny841-ssu to R5
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C4
Capacitance
22pF
F1
C1
Capacitance
100nF
C5
Capacitance
22pF
C2
Capacitance
1uF
VCC
U1
Manufacturer Part Number
ATTINY841-SSU
MISO
VREF
VCC
R6
Resistance
3.3 Ω
R18
Resistance
2.2KΩ
VCC
TXD0
R21
Resistance
10KΩ
RXD0
RESET
R3
Resistance
6.8KΩ
VCC
R2
Resistance
1KΩ
R14
Resistance
510 Ω
R1
Resistance
500 Ω
DUMP_LOAD_ENABLE
R12
Resistance
3.3 Ω
ENABLE
R26
Resistance
3.3 Ω
R16
Resistance
2.2KΩ
SCK
VCC
MISO
VREF
R4
Resistance
2.7KΩ
MOSI
R30
Resistance
3.3 Ω
RESET
VCC
SCK
VREF
R25
Resistance
3.3 Ω
MISO
MOSI
ENABLE
R5
Resistance
220 Ω
R8
Resistance
3.3 Ω
R29
Resistance
3.3 Ω
ENABLE
RXD0
VREF
R22
Resistance
3.3 Ω
R24
Resistance
3.3 Ω
R20
Resistance
10KΩ
R15
Resistance
10KΩ
SCK
MOSI
DUMP_LOAD_ENABLE
TXD0
R17
Resistance
2.2KΩ
VCC
RESET
LED4
POWER
LED3
TX
J2
REMOTE
RX
D2
R19
Resistance
10KΩ
H1
D1
End of Life
EXTTEMP1
R23
Resistance
10KΩ
Y1
U2
H3
Q1
H2
  • Generic Inductor
    Generic Inductor
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  • Generic Capacitor
    Generic Capacitor
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    jharwinbarrozo
    1.5M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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    20.5M
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • RMCF0805JT47K0
    RMCF0805JT47K0
    General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliant
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    1.2M
  • 875105359001
    875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
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    700.5k

BMS

BMS thumbnail
DIY BMS using ATTINY841-SSU this hardware has a higher balance current, fuse and TVS diode to help with voltage spikes. Most importantly, an external crystal to the micro controller (attiny841) which means the device is more reliable in low voltage situations

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$2.13–$3.39

Digi-Key

$1.81–$4.28

LCSC

$3.74–$4.49

Mouser

$3.95–$4.32

Verical

$1.88–$3.32

Controls