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Fursuit ac

ljsysfurryACE·fursuit-ac·out/foc-driver-place.kicad_pcb

Fursuit ac PCB layout, top view — open source board by ljsysfurryACE

About the Fursuit ac PCB

Fursuit ac is an open source PCB design by ljsysfurryACE, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 220 × 180 mm, with 128 components from 29 distinct parts.

Other key parts include the QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm, SOIC-8_3.9x4.9mm_P1.27mm, VSSOP-10_3x3mm_P0.5mm, Sensirion_DFN-8-1EP_2.5x2.5mm_P0.5mm_EP1.1x1.7mm and HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm. By type, the board carries 42 capacitors, 40 resistors, 12 ICs, 10 transistors, 10 connectors and 5 diodes.

It belongs with the robotics & motion and wearables designs in this gallery.

From the project

除湿型可穿戴空调（兽装专用）— 24V 无感 FOC 压缩机驱动板 + 湿冷蒸发器。Dehumidifying wearable AC for fursuits: 24V sensorless FOC BLDC driver + cold-coil dehumidification.

线性 SVPWM 上限 = Vdc/√3 = 13.86 V 峰值相电压。350W/24V 意味着： - 母线电流 ≈ 350/(0.88×24) = 16.6 A - 相电流峰值 ≈ 20~25 A（逆变器 DC 电流 ≈ 0.7×相峰值 @满调制）

仿真（压缩机负载 T = 0.15 + 5.5e-6·ω²，额定点 0.93 N·m / 350 W @3600 rpm）：

→ 按铭牌这台（150W/4500rpm）24V 完全能跑；只有"350W@4500rpm"这种工况 24V 顶不住。

→ 24V 下想跑到 3600rpm/350W，电机必须极低电感+低反电动势常数，电流要 25~28A； → 换 48V 母线，同样电机 3600rpm 轻松达到且不用弱磁。

1. 压缩机额定转速是多少？ 24V 机器通常 2000~3000 rpm；如果铭牌是 3600+ rpm， 24V 会很吃力（要么换低 λ 电机，要么上 48V / 加 Boost 前级）。 2. 压缩机铭牌：额定电压/功率/电流/极对数/相电阻电感（有实物最好实测 L、R、反电动势）。 3. 母线到底固定 24V 吗？ 能否 36V/48V（或 24V 电池 + 升压）？

Main components on the Fursuit ac

QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mmSOIC-8_3.9x4.9mm_P1.27mmVSSOP-10_3x3mm_P0.5mmSensirion_DFN-8-1EP_2.5x2.5mm_P0.5mm_EP1.1x1.7mmHSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mmSOT-223-3_TabPin2

Fursuit ac bill of materials (BOM)

128 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm
U1
1
Texas_RHA_VQFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm_ThermalVias
U2
4
SOIC-8_3.9x4.9mm_P1.27mm
U3, U4, U5, U10
1
VSSOP-10_3x3mm_P0.5mm
U6
2
Sensirion_DFN-8-1EP_2.5x2.5mm_P0.5mm_EP1.1x1.7mm
U7, U8
1
HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm
U9
2
SOT-223-3_TabPin2
U11, U12
9
TO-252-2
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +1
1
SOT-23
Q10
1
Crystal_HC49-4H_Vertical
Y1
2
AMASS_XT60-M_1x02_P7.20mm_Vertical
J1, J2
1
PinHeader_1x02_P2.54mm_Vertical
J6
4
PinHeader_1x04_P2.54mm_Vertical
J7, J9, J10, J11
2
PinHeader_1x05_P2.54mm_Vertical
J8, J12
1
PinHeader_1x03_P2.54mm_Vertical
J13
1
Fuseholder_Blade_ATO_Littelfuse_Pudenz_2_Pin
F1
4
R_2512_6332Metric
RS1, RS2, RS3, RS4
1
D_SMB
D1
1
D_SOD-123
D2
1
D_SMA
D3
Show 9 more
QtyPartRefs
2
LED_0805_2012Metric
D4, D5
1
R_0805_2012Metric
FB1
1
L_12x12mm_H8mm
L1
1
L_7.3x7.3_H4.5
L2
4
CP_Elec_10x10.5
C1, C90, C91, C97
11
C_1210_3225Metric
C2, C3, C4, C5, C50, C52, C68, C92 +3
27
C_0805_2012Metric
C30, C31, C32, C40, C41, C51, C54, C55 +19
39
R_0805_2012Metric
R1, R4, R23, R24, R25, R26, R27, R28 +31
1
R_2512_6332Metric
R3

Fursuit ac design files

The KiCad project lives in the ljsysfurryACE/fursuit-ac repository on GitHub; these links point at the commit this page was built from.

Fursuit ac: common questions

How big is the Fursuit ac PCB?

The Fursuit ac measures 220 × 180 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fursuit ac?

128 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Fursuit ac design files?

From the ljsysfurryACE/fursuit-ac repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Fursuit ac design in my own project?

Yes, under the terms of its GPL-3.0 license, which ljsysfurryACE chose for the repository.

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