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STWBC2-HP датащи(PDF) 25 Page - STMicroelectronics

номер детали STWBC2-HP
подробное описание детали  Digital controller for wireless battery charger transmitters
PDF  96 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STWBC2-HP датащи(HTML) 25 Page - STMicroelectronics

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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



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