Artwork

内容由Adafruit Industries提供。所有播客内容(包括剧集、图形和播客描述)均由 Adafruit Industries 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal
Player FM -播客应用
使用Player FM应用程序离线!

The Great Search - Compact 3.3V Step-Down with 24V Input and 0.5A output

10:07
 
分享
 

Manage episode 455948190 series 1242341
内容由Adafruit Industries提供。所有播客内容(包括剧集、图形和播客描述)均由 Adafruit Industries 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal
We're wrapping up our WLED board design (https://www.youtube.com/watch?v=M4Ybd8CdQYM) and the last part we need to spec out is the 3.3V regulator. Since we are utilizing USB PD or DC in, we could be running from 5V ~ 24VDC. For the 5V output, we only need a few mA, so we're going to pick the same LDO family we sourced earlier (https://www.youtube.com/watch?v=H_0Kua2UZCs) but for the 3.3V we need at least 500mA of current for the ESP32 chip, so a switching supply is necessary! Let's find something inexpensive with 1A+ output, 24V+ input, and we're also going to need something small so minimal passives and high frequency. See the chosen part on DigiKey https://www.digikey.com/short/rt5jw5qj ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/
  continue reading

4597集单集

Artwork
icon分享
 
Manage episode 455948190 series 1242341
内容由Adafruit Industries提供。所有播客内容(包括剧集、图形和播客描述)均由 Adafruit Industries 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal
We're wrapping up our WLED board design (https://www.youtube.com/watch?v=M4Ybd8CdQYM) and the last part we need to spec out is the 3.3V regulator. Since we are utilizing USB PD or DC in, we could be running from 5V ~ 24VDC. For the 5V output, we only need a few mA, so we're going to pick the same LDO family we sourced earlier (https://www.youtube.com/watch?v=H_0Kua2UZCs) but for the 3.3V we need at least 500mA of current for the ESP32 chip, so a switching supply is necessary! Let's find something inexpensive with 1A+ output, 24V+ input, and we're also going to need something small so minimal passives and high frequency. See the chosen part on DigiKey https://www.digikey.com/short/rt5jw5qj ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/
  continue reading

4597集单集

모든 에피소드

×
 
Loading …

欢迎使用Player FM

Player FM正在网上搜索高质量的播客,以便您现在享受。它是最好的播客应用程序,适用于安卓、iPhone和网络。注册以跨设备同步订阅。

 

快速参考指南