Eval-V2 » Historie » Version 27
Maximilian Seesslen, 06.10.2025 11:12
| 1 | 27 | Maximilian Seesslen | ### OBSOLETE, see helios ### |
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| 2 | |||
| 3 | 1 | Maximilian Seesslen | h1. Eval-V2 |
| 4 | |||
| 5 | 5 | Maximilian Seesslen | h2. New Features |
| 6 | |||
| 7 | * More current |
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| 8 | * fixed PCB traces |
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| 9 | 6 | Maximilian Seesslen | * Fix Wakeup |
| 10 | 1 | Maximilian Seesslen | * Periodic wakeups to make measurements |
| 11 | 6 | Maximilian Seesslen | * Diode ? Voltage-Drop issue |
| 12 | 16 | Maximilian Seesslen | ** Ideal diode with Mosfet |
| 13 | 1 | Maximilian Seesslen | * High voltage (24V) ? |
| 14 | 16 | Maximilian Seesslen | ** Different connectors |
| 15 | 17 | Maximilian Seesslen | * Global Timeserver; It already has batteries |
| 16 | * Real touch keys |
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| 17 | 24 | Maximilian Seesslen | * Over-Temperature power off (PCB/Box) |
| 18 | 1 | Maximilian Seesslen | * Buzzer? |
| 19 | ** indicate peridoc on/off during day time |
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| 20 | 21 | Maximilian Seesslen | * 4 Sectionen: SZ, WZ, MEMS, ? |
| 21 | ** Stoeren ungepowerte Platinen CAN? |
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| 22 | 10 | Maximilian Seesslen | |
| 23 | 5 | Maximilian Seesslen | h2. Components |
| 24 | |||
| 25 | 1 | Maximilian Seesslen | old: |
| 26 | * Traffo: "tmps05-105":https://www.tme.eu/Document/d1c9cd5c900987a008a2a0454f3785a2/tmps05-datasheet.pdf |
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| 27 | * 80 % |
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| 28 | 2 | Maximilian Seesslen | * max 1000mA, 1300mA peak |
| 29 | 3 | Maximilian Seesslen | |
| 30 | new: |
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| 31 | * "All":https://www.tme.eu/de/katalog/ac-dc-wandler-fur-leiterplatten_100433/?params=625:1856228;364:1450053;632:1819548,1819551,1819846,1819795,1819351,1819855,1819565,1819567,1819554,1819560;1776:1454716&queryPhrase=spannungswandler&productListOrderBy=1000014 |
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| 32 | |||
| 33 | * AMEL20-5S277HAVZ |
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| 34 | * 85% |
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| 35 | * 4A max |
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| 36 | |||
| 37 | 1 | Maximilian Seesslen | * MPM-20-5; 20W; 85% |
| 38 | 7 | Maximilian Seesslen | |
| 39 | 12 | Maximilian Seesslen | Ideal Diode: |
| 40 | 1 | Maximilian Seesslen | |
| 41 | * VN7140ASTR; up to 0,280 ohm, 0,120 Ohm typical |
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| 42 | 22 | Maximilian Seesslen | * LTC4412; 2,9V; TME 2.60EUro; External P-MOSFET needed |
| 43 | * MAX40200; 1A only, no external MOSFET |
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| 44 | |||
| 45 | LTC4412 is the only available |
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| 46 | 11 | Maximilian Seesslen | |
| 47 | 25 | Maximilian Seesslen | TMP1075; TMP1075NDRLR; 0,31€ |
| 48 | Muesste noch viel rumliegen haben |
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| 49 | |||
| 50 | 7 | Maximilian Seesslen | h2. Calculations |
| 51 | |||
| 52 | * 240V/600mA eigentlich ausreichend; 144W |
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| 53 | * AQH3213A |
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| 54 | * STM32F030K6T6 should draw 20µA in stop |
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| 55 | * 700mAh=700000µAh |
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| 56 | * 700000µAh/20µA=3500h=1458d=ca 4 years |
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| 57 | |||
| 58 | 4 | Maximilian Seesslen | h2. MCU |
| 59 | |||
| 60 | * "Find":https://www.tme.eu/de/katalog/st-mikrocontroller_112866/?params=375:1453589,1453450,1853043,1634756,1634761,1938598,1473784,1613924;3461:1979124,1979125 |
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| 61 | * STM32F072C8T6 |
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| 62 | 15 | Maximilian Seesslen | ** 2V, ok, Entladeaschlussspannung |
| 63 | 1 | Maximilian Seesslen | ** Nur LQFP48; 4.53Euro |
| 64 | 20 | Maximilian Seesslen | ** 1,85 € Reichelt STM32F072CBT6 128KB Flash |
| 65 | 1 | Maximilian Seesslen | * STM32H503CBT6, "STM32H503KBU6":https://www.tme.eu/Document/e92fcde7cdebb20ebbd5639f57dc7863/stm32h503cb.pdf |
| 66 | 9 | Maximilian Seesslen | ** 3.20Euro |
| 67 | 8 | Maximilian Seesslen | * Fuer VBAT wird beim STM32H503KBU6 auch FQFP48 benoetigt. |
| 68 | 23 | Maximilian Seesslen | |
| 69 | h2. Issues |
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| 70 | |||
| 71 | h3. Wie Straenge schalten |
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| 72 | |||
| 73 | * 4 x LTC4412 umstaendlich, E.g. status ruecklesen |
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| 74 | * Jeweils 2 Mosfets notwendig um zu isolieren, klein + gross |
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| 75 | 24 | Maximilian Seesslen | * |