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привіт
який максимальний струм та потужність я можу отримати від 16 SM141K04LV в...
@copilot привіт
який максимальний струм та потужність я можу отримати від 16 SM141K04LV в конфігурації 4p4s?
2y
Привіт! SM141K04LV - це сонячні панелі з максимальним струмом короткого замикання (Isc) 350 мА та максимальною потужністю 1,4 Вт. У конфігурації 4p4s (4 паралельних ланцюжка по 4 панелі в серії) максимальний струм та потужність можуть бути розраховані так:
Струм:
4 паралельні гілки, кожна з яких має струм короткого замикання 350 мА, отже:
I_total = 4 * 350 mA = 1400 mA = 1.4 A
Потужність:
У кожному з ланцюжків в серії 4 панелі, кожна з яких має максимальну потужність 1.4 Вт, отже:
P_series = 4 * 1.4 W = 5.6 W
Є 4 таких паралельних ланцюжка:
P_total = 4 * 5.6 W = 22.4 W
Отже, у такій конфігурації максимальний струм буде близько 1.4 А, а максимальна потужність - близько 22.4 Вт. Зверніть увагу, що ці значення можуть змінюватись в залежності від умов освітлення та інших факторів.
2y
6
can I use BQ25672RQMR without MCU or other host controller?
@copilot can I use BQ25672RQMR without MCU or other host controller?
2y
Yes, you can use the BQ25672RQMR without an MCU or other host controllers. The BQ25672RQMR is a highly integrated battery charge management IC that offers a standalone solution for charging and protection in various applications such as wearables, smartwatches, and IoT devices powered by single-cell Li-Ion or Li-polymer batteries.
In standalone mode, the BQ25672RQMR can operate with minimal external components and without any firmware development. The IC has various configurable features, such as charge current, input current limit, and battery voltage regulation, which can be programmed using resistors connected to specific pins.
However, if you need more advanced control, fault reporting, or additional features, you can use an MCU or host controller to interface with the BQ25672RQMR via I2C communication. But for simpler applications, it's possible to use it without an MCU or host controller.
2y
5
New Comment
7
what R\_PROG values on BQ25672RQMR do I need to set for two 3000mA 4.2V li-ion b...
@copilot what R_PROG values on BQ25672RQMR do I need to set for two 3000mA 4.2V li-ion batteries that can charge with 0.5C current?
2y
To set the charge current for two 3000mA 4.2V Li-ion batteries with 0.5C charge rate using BQ25672RQMR, you need to select R_PROG according to the desired charge current. Since each battery has a capacity of 3000mAh, a 0.5C charge rate corresponds to a 1500mA charge current for each battery.
Since the BQ25672RQMR can charge only one battery at a time, you'll need to set the charge current for just one battery (1500mA). The I_CHG formula, which defines the relationship between R_PROG and I_CHG, is given by:
I_CHG(A) = 2048 / R_PROG(kΩ)
To find the R_PROG value for 1.5 A (1500 mA) charge current:
R_PROG(kΩ) = 2048 / I_CHG(A)
R_PROG(kΩ) = 2048 / 1.5
R_PROG ≈ 1.365 kΩ
Since you won't find an exact 1.365 kΩ resistor, you can pick the closest standard resistor value, such as 1.36 kΩ, which would result in a charge current of approximately 1502 mA. Just make sure that your setup can handle the chosen current to avoid any issues due to current handling capabilities.
2y
4
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #genericsjharwinbarrozo15.5k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
This is landing pad for qudrocopters that also wireless charge the drone for next fight. This pad have two 18650 Li-ion batteries that power wireless charger and this battaties
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $87.56–$469.96 |
LCSC | $19.12–$19.35 |
Mouser | $24.27 |
Assets
Quadcopter.STEP
Quadcopter760308101103_Download_STP_760308101103_rev1.stp
760308101103_Download_STP_760308101103_rev13D Model1461798011.stp
14617980113D ModelControls
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