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Let's look inside cheapest ebike 48V LiIon battery charger โ€” minimum components, but but it performs its functions.

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Analysis of existing affordable solutions of fully integrated interface isolators with power in tiny packages.

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Quick review of modern nanocrystalline cores that now available for any engineer.

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Affordable smart capacitor-basedย activebalancer from JBD. Full teardown and components identification.

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I have two variants of battery holder, so footprint's holes too close to each other, let's write custom rule to correctly handle KiCad violation.

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You might seen such especial white glue on many electronics boards, now it's available even for DIY, so let's check it.

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Laptop chargers USB-C PD 100W became widespread, so why not use it for charging small electrical vehicles batteries?

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Testing of Chinese power bank IC designed for using with 1S battery and with supporting many fast charging protocols. But everything is not so perfect, let's take a closer look.

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Analyzing of total PCB price with components and assembly

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Searching for existing commercial transparent (DIY) power banks,

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Small useful tip how using custom rule can improve PCB layout process.

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Summary

  • ๐Ÿ’ป MCU: Cortex-M4 STM32F401
  • ๐Ÿ–ฅ Display: IPS 160ร—80 px (ST7735)
  • โšกOutput voltage (MAX): 150V+
  • ๐ŸŽ† Output current (MAX): 150mA+
  • ๐Ÿ”ฝ Control: Mechanical Buttons
  • ๐Ÿ”‹ Powering: 1S1P 3.7V 18650 Li-Ion Battery
  • ๐Ÿ”Š Notification:ย  Sound (Buzzer)
  • โžก Charging: USB Type-C
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Let's see how real automotive Tesla board using low-votlage shutdown (lockout) DC-DC mechanism is used to protect cells against undervoltage.

617

Damir ๐Ÿ’ป HS402 3.0 ANDROID STM32 Oscilloscope PCB and assembling

What does the Wi-Fi LED blinking while connected to my phone mean...
12 days ago

Marcos Silva de Melo ๐Ÿ›  TEARDOWN: Brushless Motor Controller TJMM9-AB-YTC2-CK 60V of the Chinese Electrical Bike (Ebike)

Bom dia eu jรก havia desmontado, e estou com dificuldade de...
1 month ago

KKR75 ๐Ÿ“˜ How to download step 3D model from EasyEDA/LCSC/JLCPCB?

THANK YOU. This has saved me from pulling my hair.
4 months ago

admin admin ๐Ÿ›  TEARDOWN: Brushless Motor Controller 48V of the Chinese Electrical Bike (Ebike)

No, I don't know. BTW, this controller from Crosser CR2 ebike.
4 months ago

Dmytro ๐Ÿ›  TEARDOWN: Brushless Motor Controller 48V of the Chinese Electrical Bike (Ebike)

Hi. Do you, by any chance, know what communication protocol this...
4 months ago

Dmytro ๐Ÿ›  TEARDOWN: Brushless Motor Controller 48V of the Chinese Electrical Bike (Ebike)

Yes, NFC is integrated into display, and it wouldn't be that much...
4 months ago

admin admin ๐Ÿ’ป HS402 3.0 ANDROID STM32 Oscilloscope PCB and assembling

They have active TG group: https://t.me/hscope/1 1) Check voltages...
4 months ago

admin admin ๐Ÿ›  TEARDOWN: Brushless Motor Controller 48V of the Chinese Electrical Bike (Ebike)

Hi. If NFC integrated into display I don't think so. If NFC...
4 months ago
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