Td hv
About the Td hv PCB
Td hv is an open source PCB design by tdaede, published on GitHub. It is a 2-layer board measuring 90 × 71 mm, with 60 components from 31 distinct parts.
Other key parts include the 74HC00, LM2903, 2ED2101S06FXUMA1, AP2205 and MCP1416. By type, the board carries 26 resistors, 11 capacitors, 6 test points, 5 ICs, 4 diodes and 3 transistors.
From the project
tubes
td-hv is a HV/EHT driver board. It uses a K7000 clone replacement flyback (053X0528-001).
The circuit is a classic current mode flyback driver circuit based on the UCC3801. The circuit integrates secondary-side feedback by (ab)using the resistive divider created by the focus and screen potentiometers of the flyback, inspired by the drive circuit on the MS-2931 and similar monitors.
Main components on the Td hv
Td hv bill of materials (BOM)
60 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC00 | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | LM2903 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | 2ED2101S06FXUMA1 | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | AP2205 | SOT-23-5 | U7 |
| 1 | MCP1416 | SOT-23-5 | U13 |
| 2 | BSZ42DN25NS3GATMA1 | TDSON-8-1 | Q1, Q2 |
| 1 | G3R450MT17J | TO-263-7_TabPin8_GeneSiC | Q12 |
| 1 | Conn_01x14 | JST_XH_B14B-XH-A_1x14_P2.50mm_Vertical | J1 |
| 1 | 400mA | Fuse_Schurter_UMZ250 | F1 |
| 1 | Jumper_2_Open | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | 10k | Potentiometer_Bourns_3314G_Vertical | RV1 |
| 6 | TestPoint | TestPoint_Keystone_5019_Miniature | TP4, TP6, TP7, TP8, TP9, TP10 |
| 1 | RED | LED_0805_2012Metric | D1 |
| 1 | DNP | D_SMA | D2 |
| 2 | BAT54A | SOT-23 | D3, D4 |
| 1 | 053X0528-001 | 053X0528-001 | L1 |
| 5 | 0.1uF | C_0805_2012Metric | C1, C3, C4, C7, C19 |
| 1 | 15uF 250V | CP_Elec_10x10.5 | C2 |
| 1 | 47pF 2000V NP0 | C_1812_4532Metric | C5 |
| 1 | 0.01uF | C_0805_2012Metric | C6 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0.1uF 250V | C_1206_3216Metric | C8 |
| 1 | 1uF | C_0805_2012Metric | C9 |
| 1 | 4700pF 2000V | C_Rect_L18.0mm_W5.0mm_P15.00mm_FKS3_FKP3 | C24 |
| 12 | 1k | R_0805_2012Metric | R1, R2, R8, R9, R12, R14, R15, R16 +4 |
| 3 | 1 | R_0805_2012Metric | R3, R4, R35 |
| 6 | 10k | R_0805_2012Metric | R5, R10, R11, R13, R33, R34 |
| 1 | 3k | R_2512_6332Metric | R6 |
| 1 | 47k | R_0805_2012Metric | R7 |
| 1 | 0.01 | R_0805_2012Metric | R36 |
| 1 | 1M 3000V | R_2512_6332Metric | R41 |
| 1 | 22k | R_0805_2012Metric | R105 |
Td hv design files
The KiCad project lives in the tdaede/td-crt repository on GitHub; these links point at the commit this page was built from.
- Layouttd-hv/td-hv.kicad_pcb
- Schematictd-hv/td-hv.kicad_sch
Td hv: common questions
How big is the Td hv PCB?
The Td hv measures 90 × 71 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Td hv?
60 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the Td hv design files?
From the tdaede/td-crt repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Td hv design in my own project?
The repository has no license, so all rights stay with tdaede. Use it as a reference, and ask the author before reusing the design.
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