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2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
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2.Smooth support for design sizes of over 5,000 devices or 10,000 pads
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Ongoing
STD P001: Speaker Start Delay/Soft Start
License: GPL 3.0
Mode: Editors' pick
- 2
Update time：
2023-10-07 12:28:46
Creation time：
2020-07-21 22:11:17
Description
Speaker Start Delay circuit to prevent loud turn on thumps from amplifiers.
Video of project:
[https://youtu.be/oUH6x4hy9Ck](https://youtu.be/oUH6x4hy9Ck)
Blog:
[https://ratti3.blogspot.co.uk](https://ratti3.blogspot.co.uk/)
Files:
[https://github.com/Ratti3/Speaker-Start-Delay](https://github.com/Ratti3/Speaker-Start-Delay)
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part | BOM_Manufacturer | BOM_Manufacturer Part |
|---|---|---|---|---|---|---|---|---|
| 1 | KF301 5.0 6P | AMP/SPEAKER | CONN-TH_6P-P5.00_PA001-6P | 1 | LCSC | C173288 | HIWA | PA001-6P |
| 2 | ZMM24 | ZD2,ZD1 | LL-34_L3.5-W1.5-RD | 2 | LCSC | C8074 | SEMTECH | ZMM24 |
| 3 | FINDER 40.61.7.012.0000 | RELAY.LEFT,RELAY.RIGHT | FINDER-40.61 | 2 | RS-Online | 40.61.7.012.0000 | Finder | 182-9781 |
| 4 | 1N4002W | D3,D2 | SOD-123F_L2.8-W1.8-LS3.7-RD | 2 | LCSC | C169542 | Jingdao | 1N4002W |
| 5 | XH-2A | 24V,SWITCH | CONN-TH_2P-P2.50_XH-2A | 2 | LCSC | C57141 | BOOMELE | xh-2ayellow |
| 6 | 10K | R8,R7,R2 | R1206 | 3 | LCSC | C132649 | YAGEO | RC1206FR-0710KL |
| 7 | 91K | R4 | R1206 | 1 | LCSC | C137108 | YAGEO | RC1206JR-0791KL |
| 8 | BC546BTA | Q2,Q1 | TO-92-3_L4.9-W3.7-P2.54-L | 2 | LCSC | C258143 | ON Semicon | BC546BTA |
| 9 | 18K | R6,R5 | R1206 | 2 | LCSC | C137379 | YAGEO | RC1206FR-0718KL |
| 10 | PH-2AK | ACTIVE,PLED | CONN-TH_PH-2A | 2 | LCSC | C8886 | BOOMELE | PH-2AK |
| 11 | MPSA92-AT/P | Q3 | TO-92-3_L4.8-W3.7-P2.54-L | 1 | LCSC | C112896 | KEC | MPSA92-AT/P |
| 12 | 33uF | C1 | CAP-TH_BD8.0-P3.50-D1.0-FD | 1 | RS-Online | 739-5396 | Nichicon | PLV1H330MCL1 |
| 13 | MSK-12D19 | NO | MSK-12D19 | 1 | LCSC | C223843 | Korean Hroparts Elec | K3-1260D-F1 |
| 14 | 100K | R3,R1 | R1206 | 2 | LCSC | C137393 | YAGEO | RC1206FR-07100KL |
| 15 | 1N4148W-7-F | D1 | SOD-123_L2.8-W1.8-LS3.7-RD | 1 | LCSC | C83528 | DIODES | 1N4148W-7-F |
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