Zhang Gungjun 

🔌**Zhang Gungjun | Lead Engineer @TJHXPCB  
✅15years of hardware development experience, specializing in:  
   → High-speed PCB signal integrity design  
   → Industrial Motor Controller Development  
   → Embedded system development
   → Electronic Enclosure Design

📚**Free Resources**：  
   👉 Download List of Common PCB Design Errors →[tjhxpcb.com]
   👉 Join the Electronic Design Exchange Group

💡**About My Channel**：  
   Sharing practical circuit design skills, industry trend interpretation, and behind-the-scenes stories of the TJHXPCB team.  

📧 Technical inquiries: mr.zhang.pcb@gmail.com  
📩 Business inquiries: sales@tjhxpcb.com  
🌐 Visit the company's official website →[tjhxpcb.com] （https://tjhxpcb.com）  

#PCB Design #PCB Assembly #Motor Controller #Embedded System Development #Electronic Enclosure