Overview
Description
The P9235A-RB-EVK Evaluation Board demonstrates the features of the P9235A-RB 5W Wireless Power Transmitter (TX). It is intended to evaluate the functionality and performance of the P9235A-RB when combined with a power receiver in a wireless charging system. The P9235A-RB-EVK offers the flexibility to select parameters, such as the over-current limit threshold, LED pattern, and external temperature sensing function using a graphical user interface (GUI). The printed circuit board (PCB) has four layers.
The P9235A-RB Evaluation Board is designed to function with the P9225-R Receiver Evaluation Board, which is ordered separately. It can also be used with the user’s WPC-1.2.4 compliant receiver.
The high-efficiency, turnkey reference design is supported by comprehensive online digital resources to significantly expedite the design-in effort and enable rapid prototyping. The total active area is optimized to 21mm x 21mm.
Features
- P9235A-RB Evaluation Board provides support for WPC-1.2.4
- Power capability: 5W receiver output for 5V/2A input
- Adjustable FOD thresholds and LED behaviors via graphical user interface
- Passed WPC A11a Coil configuration Pre - Qi certification tests on NOK9 with the default configuration
- Passes EN303417 Specification with default configuration
- On-board external Flash that enables users to customize the design configuration
- Fully assembled with test points and coil fixture
Applications
Documentation
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Manual - Hardware | PDF 2.26 MB | |
| Engineering | XLSX 24 KB | |
| Engineering | ZIP 433 KB | |
| PCB Design Files | ZIP 281 KB | |
| Schematic | ZIP 159 KB | |
| Schematic | PDF 726 KB | |
| White Paper |
PDF
627 KB
Wireless power transfer uses an air-core transformer with separate transmitter and receiver coils, making accurate performance modeling difficult due to low magnetic coupling and increased losses. This paper addresses simulation challenges and describes methods to approximate circuit behavior. It demonstrates best practices for tuning Qi and PMA inductive resonance circuits to maximize charging efficiency for mobile devices.
|
|
7 items
|
||
Design & Development
Product Options
| Part Number | Status | Stock | Description | Pb (Lead) Free |
|---|---|---|---|---|
| P9235A-RB-EVK | Obsolete | Out of Stock | Evaluation Board | No |
| WPD-USB-DONGLE | Obsolete | Out of Stock | USB-to-I2C Dongle (FTDI) | No |
Support
Support Communities
- P9235A-RB EVK Wireless Power Transmitter "Power Limit" status
I am using the P9235A-RB-EVK and the P9222-R-EVK to evaluate a non-standard coil configuration that results in an overall efficiency of 62% after tuning. I have it working pretty well, but when the load increases to where the input power is 4.0W to 4 ...
Oct 1, 2021
Support Communities
