PCB and PCB Assembly Manufacturer

PCB and PCB Assembly Manufacturer Dedicated To High-End PCB Manufacturing
Since 2005, RAYMING™ has delivered premium PCB manufacturing and assembly solutions to clients worldwide.

RAYMING PCB | Since 2005 🌍
🔌 Premium PCB Manufacturing
⚡ Reliable PCB Assembly (PCBA)
✨ Electronic Contract Manufacturer
✅ Fast Turnkey Solutions | Global Shipping
📩 DM for quotes & partnerships!

Our comprehensive services span the entire electronics production cycle, from initial PCB fabrication and SMT assembly through complete functional testing. As a relia

ble chinese electronic contract manufacturer, we excel in rapid PCB prototyping and complete turnkey assembly services. Our end-to-end capabilities and deep technical knowledge position RAYMING as your trusted partner for every PCB requirement.

✅ Full Turnkey PCBA Services

🔌 Premium PCB Manufacturing
⚡ Reliable PCB Assembly (PCBA)
📍 100% Authentic Component Procurement
📌 Advanced PCBA Testing & Quality Control

DJI Phantom 4 RayMing PCB & Assembly
05/02/2026

DJI Phantom 4 RayMing PCB & Assembly

Q. X. Lai and Y. M. Pan present a novel self-decoupled four-port multiple-input–multiple-output (MIMO) metasurface (MTS)...
28/01/2026

Q. X. Lai and Y. M. Pan present a novel self-decoupled four-port multiple-input–multiple-output (MIMO) metasurface (MTS) antenna.

27/01/2026

Screwing Saving man power

If AI Could Design This 843-Component Linux Computer, How Many Engineers Could It Replace?
29/12/2025

If AI Could Design This 843-Component Linux Computer, How Many Engineers Could It Replace?

12V Relay Support, Improved Power Architecture ( Design by Sanjay Batra )⭐ Key Highlights of the Upgrade1️⃣ 12V Relay In...
28/11/2025

12V Relay Support, Improved Power Architecture ( Design by Sanjay Batra )
⭐ Key Highlights of the Upgrade
1️⃣ 12V Relay Integration
1. Supports Panasonic APAN3112 (12V/5A) SPST relays
2. Alternative supported: Hongfa HF49FD-012-1H12G
3. Driven through TPL7407LDR MOSFET relay driver
4. No ground plane placed beneath the RELAY's to reduce switching noise coupling ( Is the right way )
5. A dedicated 12V line is routed directly from the source specifically for relays

2️⃣ Power Architecture
1. LMR51430 buck converter used to regulate 12V → 5V for ATmega128A-AU + 20×4 LCD
2. AMS1117-3.3 used to generate a separate 3.3V rail for two PT100 sensor ICs
------Currently evaluating optimal ground-plane layout for:-------
* Buck converter
* AMS1117-3.3 LDO
* Noise-sensitive analog section
Open to suggestions on best practices for grounding, thermal relief, and copper separation

3️⃣ Sensor & Motor Control
1. Supports two PT100 sensors, each controlling a heater through relays
2. 60 RPM / 10 kg-cm synchronous motor
3. Rotor motor
Synchronous motor feedback is processed via an NPN proximity sensor → PC817 optocoupler, isolated and powered by a separate 5V supply to minimize digital noise
Interrupt routines and watchdog logic are written in low-level AVR code

-------------------------------------------------------------------------------------
🔍 Looking for Suggestions : Please Review the PCB
----------I would really appreciate inputs on: ---------------
🟦 1. Advanced or modern 12V Relay alternatives ?
Something more efficient, compact, or with better isolation.

🟩 2. Best Ground-Plane practices for:
* DC-DC buck converters (LMR51430)
* AMS1117-3.3 LDO
* Mixed analog + digital boards

🟧 3. Any layout improvements for noise isolation or EMI reduction ?

An intelligent control board based on PSoC4, featuring Ethernet (W5500), Dual-SIM GSM, and RS485 communication for indus...
26/11/2025

An intelligent control board based on PSoC4, featuring Ethernet (W5500), Dual-SIM GSM, and RS485 communication for industrial control and remote monitoring applications.

Rogers RT Duroid 5880 PCB
18/11/2025

Rogers RT Duroid 5880 PCB

AMS1117 LDO RegulatorPower regulation is one of the most important parts of any electronics design, especially when work...
18/11/2025

AMS1117 LDO Regulator

Power regulation is one of the most important parts of any electronics design, especially when working with sensitive microcontrollers, sensors, and communication modules. The AMS1117 is one of the most commonly used Low Dropout (LDO) regulators, and for a good reason—it's simple, reliable, and perfect for stepping down higher voltages to stable logic-level outputs.

This diagram highlights two key configurations:

🔹 Fixed Output Versions
These deliver preset voltages such as 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, or 5.0V with just two capacitors for stability. Ideal for clean, noise-free power rails.

🔹 Adjustable Output Version (AMS1117-ADJ)
When flexibility is needed, the adjustable variant allows you to set any output voltage using two resistors with the formula:
Vout = 1.25 × (1 + R2/R1)
Perfect for custom power requirements in advanced embedded systems.

Whether you’re powering an ESP32, sensors, or custom PCB designs, understanding regulators like the AMS1117 helps you build more stable, efficient, and professional circuits.

High-Efficiency Three-Phase Motor Driver
11/11/2025

High-Efficiency Three-Phase Motor Driver

Using mirror-symmetric layout blocks can save a lot of design time. DRAM layouts are a good example of this. When design...
07/11/2025

Using mirror-symmetric layout blocks can save a lot of design time. DRAM layouts are a good example of this.

When designing a DRAM interface, it is worth investing time in breakout routing that can be mirrored to match other channels in the DRAM package. Although the LPDDR pinout and ball grid dimensions are standardized by JEDEC, DRAM controller pinouts on host SoCs are rarely designed to be mirror symmetric. Nevertheless, due to the high degree of design freedom afforded by channel, byte and bit swapping, a large proportion of mirror-symmetric escape routing can still be adapted.
Using layout snippets for standardized DRAM packages is another way to reduce both design time and risk. When setting up a layout snippet initially, it is important not to design copper geometry at the design rule minimum, (e.g. very close to vias and pads) in order to allow for changes to trace geometry that are required when adapting the design to different layerstacks.

Sound capture device PCB The device uses an ESP32-S3 microcontroller with a digital MEMS microphone (INMP441) for record...
06/11/2025

Sound capture device PCB
The device uses an ESP32-S3 microcontroller with a digital MEMS microphone (INMP441) for recording and a Class D amplifier (MAX98357A) for playback. Records to SD card in standard WAV format, so files work anywhere. Three buttons—start recording, stop, and play last recording.

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