Recent content by Jason Hogan

Search Forums New Posts
  1. Jason Hogan

    Have you encountered space-constraint issues in your latest wearable device projects?

    Nice choice with the ST25R3916B for the charger/poller side — it's an absolute tank when it comes to active power output and dynamic power control (DPC). For the small-form-factor receiver/listener demo board, here are three solid chip options from ST and NuCurrent depending on your target...
  2. Jason Hogan

    Have you encountered space-constraint issues in your latest wearable device projects?

    Here is a constructive, embedded-hardware perspective to post in reply to Luke11: Spot on about the pogo-pin corrosion issue, Luke. Sweat and salt ingress on exposed metal contacts remain a major cause of RMA returns for fitness bands and smart rings. NFC Wireless Charging (NFC-WLC)...
  3. Jason Hogan

    DIY Geiger Counter – Looking for Feedback on the Schematic and PCB Design

    A few practical pointers from building 400V GM tube boards: HV Ground & Copper Pours: Do NOT pour ground planes directly underneath the 400V boost inductor, rectifier diode, and GM tube anode node. Keep the HV area completely clear of inner and outer ground pours to avoid parasitic capacitive...
See more
Top