STWBC2-HP datasheet(25/96 Pages) STMICROELECTRONICS

tên linh kiện	STWBC2-HP

Giải thích chi tiết về linh kiện	Digital controller for wireless battery charger transmitters

PDF	96 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

Logo

25 / 96 page

2.2.1

Main PWM

2.2.1.1

Overview

This block implements the high resolution PWM (HR-PWM) configurable to synthesize very accurate frequencies

and duty cycle to fulfil the wireless charger standard requirements.

Figure 28. HR-PWM block diagram overview

2.2.1.2

Feature list

•

Timing with high resolution using 17-step DLL

•

PWM generation based on a sequence of steps

•

Integrated FSK generation using data FIFO

•

External event reactivity

•

High resolution chronometer

•

Chronometer output port for phase demodulation

•

Graceful start-up and stop-down

•

Synchronous update of sequence

•

Pipeline configuration through shadow registers

2.2.1.3

Functional description

The Main PWM is composed of two essential blocks:

•

The signal generation block produces PWM outputs based on a programmable sequence

•

The chronometer block captures the timing of external events

Here below is shown the internal block diagram.

STWBC2-HP

Digital AFE functions

DS13825 - Rev 1.0

page 25/96

STWBC2-HP bảng dữ liệu(PDF) 25 Page - STMicroelectronics