DSP application on one dimentional signal

Patent review: DIGITAL SIGNAL PROCESSOR ENHANCED PULSE WIDTH MODULATION                             AMPLIFIER

Application no.10/106,544

Patent no.US,6,683,494,B2

Date of patent:Jan27,2014

Summary:
A pulse width modulator(PWM) audio power amplifier with a switch mode power convertor is provided that may adjust the duty cycle of the switch mode power converter based on output current.The PWM audio power amplifier may include digital signal processor to process input signal and control switch mode power converter to minimize distortion in amplified input signal.The control within PWM audio power amplifier may include digital feed for ward open loop control or may combine digital feed forward digital open loop with analog negative feedback closed loop control
to minimize distortion in output signal.
Link:http:https://patents.google.com/patent/US6683494B2/en


IEEE Paper review: DSP BASED IMPLEMENTATION OF A DIGITALLY-CONTROLLED                                              SINGLE PHASE PWM INVERTER FOR UPS
Authors: H.J. JIANG, Y. QIN , S. S DU,Z.Y. YU, S. CHOUDHURY
Publisher: IEEE


Summary:
This paper presents a new method to realize a digitally-controlled Pulse Width Modulation (PWM) inverter used in an on-line Uninterruptible Power Supply (UPS). This digitally-controlled PWM inverter has been implemented using a Digital Signal Processor (DSP). This implementation includes PWM pulse generation, voltage feedback loop (outer loop) and average current feedback loop (inner loop). Simulation and experimental results are given to verify the DSP based PWM inverter design and implementation.
Link:http://ieeexplore.ieee.org/document/793502/