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Eval-V2 » Historie » Version 16

Maximilian Seesslen, 06.03.2025 11:01

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h1. Eval-V2
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h2. New Features
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* More current
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* fixed PCB traces
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* Fix Wakeup
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* Periodic wakeups to make measurements
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* Diode ? Voltage-Drop issue
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** Ideal diode with Mosfet
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* High voltage (24V) ?
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** Different connectors
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* A global Timeserver
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* Buzzer?
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** indicate peridoc on/off during day time
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h2. Components
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old: 
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* Traffo: "tmps05-105":https://www.tme.eu/Document/d1c9cd5c900987a008a2a0454f3785a2/tmps05-datasheet.pdf
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* 80 %
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* max 1000mA, 1300mA peak
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new:
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* "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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* AMEL20-5S277HAVZ
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* 85%
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* 4A max
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* MPM-20-5; 20W; 85%
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Ideal Diode:
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* VN7140ASTR; up to 0,280 ohm, 0,120 Ohm typical
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* LTC4412; 2,9V
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* MAX40200; 1A
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h2. Calculations
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* 240V/600mA eigentlich ausreichend; 144W
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* AQH3213A 
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* STM32F030K6T6 should draw 20µA in stop
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* 700mAh=700000µAh
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* 700000µAh/20µA=3500h=1458d=ca 4 years
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h2. MCU
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* "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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* STM32F072C8T6
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** 2V, ok, Entladeaschlussspannung
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** Nur LQFP48; 4.53Euro
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** 1,70 € Reichelt
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* STM32H503CBT6, "STM32H503KBU6":https://www.tme.eu/Document/e92fcde7cdebb20ebbd5639f57dc7863/stm32h503cb.pdf
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** 3.20Euro
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* Fuer VBAT wird beim STM32H503KBU6 auch FQFP48 benoetigt.