Keep breathing ctrl

CV19CO·open_controller_for_ventilator·pcb/keep_breathing_ctrl.kicad_pcb

Keep breathing ctrl is an open source FPGA PCB design by CV19CO: a 4-layer, 153 × 148 mm board with 248 components (93 distinct parts). It is built around the MPL3115A2, POWERSTEP01, TLP240D, XCL214B333 and more.

Open source controller for ventilators

Keep breathing ctrl, from the project README — From the project README

Built around

MPL3115A2 POWERSTEP01 TLP240D XCL214B333 PCF8523TK AQH3223AX HTS221 ICE40UP5K-SG48ITR GD25Q32CTIGR-MEMORY_FLASH UCC12040 ISO7762 XCL206B123

Parts list

248 components, 93 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	MPL3115A2	8LGA	U1
1	POWERSTEP01 powerSTEP01	powerSTEP01	U2
6	TLP240D	TLP240D_TP1	U3, U4, U5, U6, U7, U8
1	XCL214B333	TOREX_XCL214B123DR	U9
1	PCF8523TK	HVSON8	U10
4	AQH3223AX	AQH3223A	U11, U12, U19, U20
1	HTS221	HLGA-6L	U13
1	ICE40UP5K-SG48ITR	QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm	U14
1	GD25Q32CTIGR-MEMORY_FLASH GD25Q32CTIGR-Memory_Flash	SOIC-8_3.9x4.9mm_P1.27mm	U15
1	UCC12040	SOIC-16W_7.5x10.3mm_P1.27mm	U16
1	ISO7762	SSOP-16_3.9x4.9mm_P0.635mm	U17
1	XCL206B123	CL-2025-02	U18
4	PN2222	SOT23_Transistor	Q1, Q2, Q6, Q7
1	DMG2305UX	SOT-23	Q3
1	BCM857BS	SOT-363_SC-70-6	Q4
1	2SC3325-Y	2SC3325-Y	Q5
1	ABM8G	ABM8G	X1
1	ABS06-107-32.768KHZ-T	ABS06-107	Y1
1	CONN_02X04_ODD_EVEN Conn_02x04_Odd_Even	PinSocket_2x04_P2.54mm_Horizontal	J1
1	1757284	PhoenixContact_MSTBA_2,5_6-G-5,08_1x06_P5.08mm_Horizontal	J2

Show 73 more

Qty	Part	Footprint	Refs
1	CONN_02X11_ODD_EVEN Conn_02x11_Odd_Even	PinHeader_2x11_P2.54mm_Vertical	J3
1	S5690 CONN_RASPBERRY	SMD_CONN_2x20	P1
1	CONN_01X04_FEMALE Conn_01x04_Female	PhoenixContact_MSTB_2,5_2-GF_1x02_P5.00mm_Horizontal_ThreadedFlange_MountHole	P2
4	0.1UF 0.1uF	C_0402_1005Metric	CS1, CS2, CS3, CST1
1	1UF 1uF	C_0402_1005Metric	CST2
2	2.2UF 2.2uF	C_0402_1005Metric	CST3, CST4
2	22PF 22pF	C_0402_1005Metric	CXST1, CXST2
1	MF-MSMF250/X	PTC	F1
9	CONN_01X03 Conn_01x03	PinSocket_2x04_P2.54mm_Vertical_SMD	G0, G1, G2, G3, G4, G5, G6, G7 +1
2	JUMPER_2_OPEN Jumper_2_Open	STpowerSTEP01_JMP	JP1, JP2
1	CSS-95B30-SMT	CUI_CSS-95B30-SMT	LS1
2	445-2982-1 2A 120 ohm	R_0603_1608Metric	LST1, LST2
1	10142708-08200LF Conn_01x03	10142708-08200LF	PWR1
6	CONN_02X04_ODD_EVEN Conn_02x04_Odd_Even	PinHeader_2x04_P2.54mm_Vertical	RJ1, RJ2, RJ3, RJ4, RJ5, RJ6
6	CONN_01X04_FEMALE Conn_01x04_Female	PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal	RL1, RL2, RL3, RL4, RL5, RL6
4	CONN_01X04_FEMALE Conn_01x04_Female	PhoenixContact_MSTBA_2,5_2-G-5,08_1x02_P5.08mm_Horizontal	RL7, RL8, RL9, RL10
8	0.27	R_2512_6332Metric	RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8
2	10K 10k	R_0402_1005Metric	RST1, RST2
9	CONN_02X07_COUNTER_CLOCKWISE Conn_02x07_Counter_Clockwise	PinSocket_2x07_P2.54mm_Vertical_SMD	S0, S1, S2, S3, S4, S5, S6, S7 +1
1	SW_DIP_X01 SW_DIP_x01	Molex_CLIK-Mate_502443-0270_1x02-1MP_P2.00mm_Vertical	SW1
1	STM32F427VIT6	LQFP-100_14x14mm_P0.5mm	UST1
1	B280-FDI 80V (Back EMF Clamp)	D_SMB	D0
1	D_SCHOTTKY_X2_SERIAL_AKC D_Schottky_x2_Serial_AKC	SOT-23	D1
1	1727-7336-1 D_Schottky	D_SOD-123	D2
1	SML-D12M1WT86 LED GRN	D_0603_1608Metric	D3
1	CDBU0520	D_SOD-523	D4
1	SML-D12U1WT86 LED RED	D_0603_1608Metric	D5
1	SMBJ5.0A SMBJ5.0A-TR	DO-214AA	D6
1	1SS389L3F 1SS389,L3F	D_SOD-523	D7
3	LED	LED_0603_1608Metric	D8, D9, D11
1	1N4148	D_SOD-123	D10
1	445-2982-1 Ferrite_Bead_Small	R_0603_1608Metric	FB1
1	22UF 22uF	C_0805_2012Metric	C1
2	478-9924-1 470nF 100V	C_0805_2012Metric	C2, C3
1	220NF 220nF	C_0402_1005Metric	C4
1	0.1UF 0.1uF	C_0603_1608Metric	C5
4	1276-2949-1 220nF 100V	C_0805_2012Metric	C6, C7, C8, C9
2	P10776 100uF 100V (Low ESR)	CP_Radial_D12.5mm_P5.00mm	C10, C11
29	0.1UF 0.1uF	C_0402_1005Metric	C12, C14, C22, C26, C29, C30, C34, C35 +21
1	1276-2960-1 47nF 100V	C_0805_2012Metric	C13
3	100NF 100nF	C_0402_1005Metric	C15, C31, C32
2	10U 10u	C_0603_1608Metric	C16, C18
1	1UF 1uF	C_0402_1005Metric	C17
3	0.1U 0.1u	C_0402_1005Metric	C19, C42, C44
1	100UF 100uF	R_1206_3216Metric	C20
1	47UF 47uF	R_0603_1608Metric	C21
2	4PF 4pF	C_0402_1005Metric	C23, C25
1	JUWT1105MCD	CP_Radial_D6.3mm_P2.50mm	C24
4	399-20611-1 0.1u 250V	C_1210_3225Metric	C27, C28, C76, C77
5	10UF 10uF	C_0603_1608Metric	C33, C36, C41, C75, C78
1	4.7UF 4.7uF	C_1206_3216Metric	C40
5	C1005X5R0J104K050BA 0.1u	R_0402_1005Metric	C43, C45, C48, C49, C52
4	4.7U 4.7u	R_0603_1608Metric	C46, C50, C51, C53
2	4.7U 4.7u	C_0603_1608Metric	C47, C73
1	100NF 100nF	R_0402_1005Metric	C72
1	-	Resistor_NP_0805	R1
15	10K 10k	R_0402_1005Metric	R2, R5, R29, R30, R31, R33, R34, R42 +7
1	47K	R_0603_1608Metric	R3
1	1.8K	R_0603_1608Metric	R4
1	47K 47k	R_0402_1005Metric	R6
2	39K	R_0402_1005Metric	R7, R8
3	330	R_0402_1005Metric	R9, R22, R58
1	450	R_0402_1005Metric	R10
1	330	R_0402_1005Metric	R11
1	500	R_0402_1005Metric	R12
12	100	R_0402_1005Metric	R13, R28, R32, R37, R38, R40, R41, R46 +4
2	2.2K 2.2k	R_0402_1005Metric	R14, R15
8	200	R_0402_1005Metric	R16, R17, R18, R19, R20, R21, R23, R61
3	1k	R_0402_1005Metric	R24, R25, R55
4	LTR18EZPJ101 100 1/2W	R_0612_1632Metric	R26, R27, R56, R59
4	22	R_0402_1005Metric	R35, R36, R57, R60
1	100K 100k	R_0402_1005Metric	R39
1	180	R_0402_1005Metric	R54

Keep breathing ctrl

Built around

Parts list

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