Eval » Historie » Version 6
Redmine Admin, 13.12.2021 13:05
| 1 | 1 | Redmine Admin | h1. Eval |
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| 3 | h2. Battery life |
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| 5 | 5 | Redmine Admin | "Unterschwelleneffekt":https://de.wikipedia.org/wiki/Unterschwelleneffekt / leakage current |
| 6 | 4 | Redmine Admin | |
| 7 | 1 | Redmine Admin | Buzzer is now driven by MOSFET. The "Zero Gate Voltage Drain Current" is relevant for battery life in unused status. |
| 8 | "Nexpedia":https://assets.nexperia.com/documents/user-manual/Nexperia_document_book_MOSFETGaNFETApplicationHandbook_2020.pdf |
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| 9 | 2 | Redmine Admin | Most manufactures specify an "Zero Gate Voltage Drain Current" of 1µA at 20-30V. Temperature has an big impact. |
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| 11 | Vergleichen mit verwendetem Transistor; |
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| 12 | "NPN":https://www.reichelt.de/bipolartransistor-npn-45-v-0-5-a-0-225-w-sot-23-bcx-19-smd-p90184.html (3.2.2019) |
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| 13 | 3 | Redmine Admin | IE scheint 0, ICB ist mit 100nA angegeben |
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| 15 | Einfach Messen... ist sowieso ein guter Geraete-Test |
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| 16 | 6 | Redmine Admin | |
| 17 | The MCU STM32L031x4 runs with 1.65V to 3.6V. "Battery1":https://docs.rs-online.com/fae6/A700000008139582.pdf "Battery2":https://docs.rs-online.com/01fa/0900766b817143bf.pdf specify a capacity of 235mAh to 2.0 volts |
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| 18 | LEDs should be visible at 2Volts. |