Main supply 4 VM
About the Main supply 4 VM PCB
Main supply 4 VM is an open source PCB design by Thinkpad4by3, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 194 components from 135 distinct parts.
Other key parts include the LM5155DSSR, TLV314QDBVR, PC817, TL431DBZ and AP2204K-5.0. By type, the board carries 89 resistors, 52 capacitors, 19 diodes, 9 ICs, 6 transistors and 6 connectors.
From the project
Electrostatic CRT driver designed from the ground up for performance, versatility and ease-of-manufacturability
(Mention the lack of a good method of adjustment due to the Rfb being a single resistor)
The new design uses an LM5155 and a far more conventional topology. The filament was powered through a TL431 regulated isolated flyback converter, and the A2/A3 generation was done through non-isolated ground referenced converters. A2 was referenced to ground, so the A2 supply generated the cathode potential at -400 - 2000V, and A3 was just the positive copy of A2. The main HV supplies use the NA5920-ALD, the only >1:10 ratio transformer available at the moment that is
Main components on the Main supply 4 VM
Main supply 4 VM bill of materials (BOM)
194 components, 135 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM5155DSSR AP2204K-5.0 | SOT-23-5 | U1 |
| 1 | TLV314QDBVR LM5155DSSR | IC_LM5155DSSR | U2 |
| 2 | LM5155DSSR TLV314QDBVR | SOT-23-5 | U3, U5 |
| 1 | PC817 LM5155DSSR | IC_LM5155DSSR | U4 |
| 1 | TL431DBZ TLV314QDBVR | SOT-23-5 | U6 |
| 1 | AP2204K-5.0 PC817 | DIP-4_W7.62mm | U7 |
| 1 | AP2204K-5.0 LM5155DSSR | IC_LM5155DSSR | U8 |
| 1 | AMC1311 TL431DBZ | SOT-23 | U9 |
| 2 | CSD19537Q3 2N7002 | SOT-23 | Q1, Q3 |
| 1 | CSD19537Q3 Si7450DP | PowerPAK_SO-8_Single | Q2 |
| 1 | STN0214 Si7450DP | PowerPAK_SO-8_Single | Q4 |
| 1 | 2N7002 | SOT-23 | Q5 |
| 1 | Si7450DP | PowerPAK_SO-8_Single | Q6 |
| 1 | CONN_01X02_PIN 12V IN | JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical | J1 |
| 1 | A3_EN | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | C81276 A2_EN | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | C81276 FIL_EN | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | A3_EN MAIN HV | JST_VH_B3P5-VH-B_1x05_P3.96mm_Vertical | J5 |
| 1 | A3_EN FILAMENT | JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical | J6 |
| 1 | C1972452 Fuse | Fuse_0805_2012Metric | F1 |
Show 115 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0.002 0.02 | R_1206_3216Metric | RS1 |
| 1 | 1MEG 10k | Potentiometer_Bourns_3296Y_Vertical | RV1 |
| 1 | 4.7K 10k | Potentiometer_Bourns_3296Y_Vertical | RV2 |
| 1 | 4.7K 4.7k | Potentiometer_Bourns_3296Y_Vertical | RV3 |
| 2 | 750315839 | WE-FLYLT_EP13_5465 | T1, T2 |
| 1 | YA9033-ALD | XFMR_YA9033-ALD | T3 |
| 1 | A3-ADJ | TestPoint_Keystone_5010-5014_Multipurpose | TP1 |
| 1 | A2-ADJ | TestPoint_Keystone_5010-5014_Multipurpose | TP2 |
| 1 | AGND3 | TestPoint_Keystone_5010-5014_Multipurpose | TP3 |
| 1 | AGND | TestPoint_Keystone_5010-5014_Multipurpose | TP4 |
| 1 | 5V | TestPoint_Keystone_5010-5014_Multipurpose | TP5 |
| 2 | D | D_SMA | D1, D4 |
| 8 | C5387 D | D_SMA | D2, D3, D6, D9, D10, D11, D12, D13 |
| 2 | C5387 LED | LED_0603_1608Metric | D5, D7 |
| 4 | LED | LED_0603_1608Metric | D8, D14, D16, D19 |
| 1 | D_Schottky | D_SMA | D15 |
| 1 | C5387 D_Schottky | D_SOD-123 | D17 |
| 1 | D_Schottky | D_SOD-123 | D18 |
| 2 | 220P 10u | C_0805_2012Metric | C1, C20 |
| 3 | 10U 10u | C_0805_2012Metric | C2, C21, C42 |
| 2 | 10U 100n | C_0603_1608Metric | C3, C35 |
| 2 | 220N 100n | C_1812_4532Metric | C4, C6 |
| 2 | 100N 220n | C_2220_5750Metric | C5, C9 |
| 1 | 100N 10u | C_0805_2012Metric | C7 |
| 2 | 220N 10u | C_0805_2012Metric | C8, C37 |
| 1 | 470P 220p | C_0603_1608Metric | C10 |
| 1 | 100n | C_0603_1608Metric | C11 |
| 2 | 220P 220n | C_2220_5750Metric | C12, C27 |
| 1 | 47N 1u | C_0603_1608Metric | C13 |
| 1 | 22N 100p | C_0603_1608Metric | C14 |
| 1 | 100P 47n | C_0603_1608Metric | C15 |
| 1 | 100N 470n | C_0603_1608Metric | C16 |
| 1 | 220N 100p | C_0603_1608Metric | C17 |
| 1 | 100N 100p | C_0603_1608Metric | C18 |
| 2 | 220N 100n | C_0603_1608Metric | C19, C40 |
| 1 | 10U 220p | C_0603_1608Metric | C22 |
| 1 | 220N 220n | C_2220_5750Metric | C23 |
| 2 | 100N 100n | C_0603_1608Metric | C24, C44 |
| 1 | 470P 220n | C_2220_5750Metric | C25 |
| 1 | 100n | C_1812_4532Metric | C26 |
| 1 | 47N 100n | C_1812_4532Metric | C28 |
| 1 | 22N 1u | C_0603_1608Metric | C29 |
| 1 | 220P 100p | C_0603_1608Metric | C30 |
| 1 | 100N 47n | C_0603_1608Metric | C31 |
| 1 | 10U 470n | C_0603_1608Metric | C32 |
| 1 | 10U 20p | C_0603_1608Metric | C33 |
| 1 | 100U 100n | C_0603_1608Metric | C34 |
| 1 | 10U 100p | C_0603_1608Metric | C36 |
| 1 | 470P 10u | C_0805_2012Metric | C38 |
| 1 | 220p | C_0603_1608Metric | C39 |
| 1 | 47N 10u | C_0805_2012Metric | C41 |
| 1 | 10U 100u | CP_Elec_6.3x7.7 | C43 |
| 1 | 100N 4.7u | C_0603_1608Metric | C45 |
| 1 | 100N 470p | C_0603_1608Metric | C46 |
| 1 | 100N 1u | C_0603_1608Metric | C47 |
| 1 | 10U 220n | C_0603_1608Metric | C48 |
| 1 | 10U 47n | C_0603_1608Metric | C49 |
| 1 | 100N 220n | C_0603_1608Metric | C50 |
| 1 | 100N 10n | C_2220_5750Metric | C51 |
| 1 | 10n | C_2220_5750Metric | C52 |
| 2 | 3.9K 1Meg | R_1206_3216Metric | R1, R26 |
| 1 | 50K 20 | R_1206_3216Metric | R2 |
| 1 | 50K 39k | R_0603_1608Metric | R3 |
| 1 | 100 50k | R_0603_1608Metric | R4 |
| 1 | 100k | R_0603_1608Metric | R5 |
| 1 | 20 | R_1206_3216Metric | R6 |
| 5 | 1k | R_0603_1608Metric | R7, R73, R79, R80, R81 |
| 2 | 10k | R_0603_1608Metric | R8, R52 |
| 1 | 100 | R_0603_1608Metric | R9 |
| 1 | 0 | R_0603_1608Metric | R10 |
| 1 | 22K 10k | R_0603_1608Metric | R11 |
| 1 | 100K 39k | R_0603_1608Metric | R12 |
| 2 | 1MEG 1k | R_0603_1608Metric | R13, R39 |
| 1 | 1MEG 220k | R_0603_1608Metric | R14 |
| 1 | 470 12k | R_0603_1608Metric | R15 |
| 7 | 1MEG 10k | R_0603_1608Metric | R16, R17, R19, R22, R40, R45, R70 |
| 1 | 1MEG 18.7k | R_0603_1608Metric | R18 |
| 1 | 1MEG 3k | R_0603_1608Metric | R20 |
| 1 | 1MEG 2.49k | R_0603_1608Metric | R21 |
| 1 | 4.7K 330k | R_0603_1608Metric | R23 |
| 5 | 330k | R_0603_1608Metric | R24, R25, R54, R55, R56 |
| 3 | 50K 1Meg | R_1206_3216Metric | R27, R29, R60 |
| 6 | 1Meg | R_1206_3216Metric | R28, R31, R32, R33, R57, R58 |
| 1 | 100 1Meg | R_1206_3216Metric | R30 |
| 1 | 22K 1Meg | R_1206_3216Metric | R34 |
| 2 | 1MEG 39k | R_0603_1608Metric | R35, R66 |
| 1 | 100K 50k | R_0603_1608Metric | R36 |
| 1 | 1MEG 100k | R_0603_1608Metric | R37 |
| 1 | 1MEG 100 | R_0603_1608Metric | R38 |
| 3 | 1MEG 20 | R_1206_3216Metric | R41, R42, R44 |
| 1 | 1MEG 0 | R_0603_1608Metric | R43 |
| 1 | 470 22k | R_0603_1608Metric | R46 |
| 1 | 50K 1k | R_0603_1608Metric | R47 |
| 1 | 100 220k | R_0603_1608Metric | R48 |
| 1 | 50K 25k | R_0603_1608Metric | R49 |
| 1 | 18.7k | R_0603_1608Metric | R50 |
| 1 | 33K 4.7k | R_0603_1608Metric | R51 |
| 1 | 2.49k | R_0603_1608Metric | R53 |
| 1 | 20K 1Meg | R_1206_3216Metric | R59 |
| 5 | 1MEG 1Meg | R_1206_3216Metric | R61, R62, R63, R64, R65 |
| 1 | 6.8K 50k | R_0603_1608Metric | R67 |
| 1 | 100K 100k | R_0603_1608Metric | R68 |
| 1 | 10K 10k | R_0603_1608Metric | R69 |
| 1 | 100K 100 | R_0603_1608Metric | R71 |
| 1 | 10K 100k | R_0603_1608Metric | R72 |
| 1 | 1MEG 33k | R_0603_1608Metric | R74 |
| 1 | 10K 0 | R_0603_1608Metric | R75 |
| 1 | 10K 5k | R_0603_1608Metric | R76 |
| 1 | 10K 22k | R_0603_1608Metric | R77 |
| 1 | 20 | R_0603_1608Metric | R78 |
| 1 | 50k | R_0603_1608Metric | R82 |
| 1 | 21k | R_0603_1608Metric | R83 |
| 2 | 1.5k | R_1206_3216Metric | R84, R85 |
| 2 | 240 | R_0603_1608Metric | R86, R89 |
| 2 | 3k | R_0603_1608Metric | R87, R88 |
Main supply 4 VM design files
The KiCad project lives in the Thinkpad4by3/chibitron repository on GitHub; these links point at the commit this page was built from.
Main supply 4 VM: common questions
How big is the Main supply 4 VM PCB?
The Main supply 4 VM measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Main supply 4 VM?
194 components, from 135 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 Main supply 4 VM design files?
From the Thinkpad4by3/chibitron repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Main supply 4 VM design in my own project?
The repository has no license, so all rights stay with Thinkpad4by3. Use it as a reference, and ask the author before reusing the design.
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