Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Output circuits with class D amplifier










Image Number 12 for United States Patent #8022756.

Output circuits using pulse width modulation (PWM) and/or pulse density modulation (PDM) are described. In one aspect, a PWM output circuit includes a PWM modulator that operates based on a square wave signal instead of a sawtooth or triangular wave signal. In another aspect, a PDM output circuit includes a PDM modulator that uses variable reference voltages to reduce variations in switching frequency. In yet another aspect, a dual-mode output circuit supports both PWM and PDM and includes a pulse modulator and a class D amplifier. The pulse modulator performs PWM on an input signal if a PWM mode is selected and performs PDM on the input signal if a PDM mode is selected. The class D amplifier receives a driver signal from the pulse modulator and generates an output signal.








 
 
  Recently Added Patents
Dynamically reconfigurable systolic array accelorators
Systems and methods for redox flow battery scalable modular reactant storage
Normalized contextual performance metric for the assessment of fatigue-related incidents
Analysis, secure access to, and transmission of array images
Systems and methods for managing fleet services
Method for the treatment, alleviation of symptoms of, relieving, improving and preventing a cognitive disease, disorder or condition
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
  Randomly Featured Patents
Methods, systems, and computer readable media for diameter network management
Method and container device for the protection and thermal conditioning of apparatus, in particular electronic apparatus generating heat
Solvent recovery from water
Rod gripper
Phosphor, and radiation image storage panel
Serpentine tube inspection positioning spine
Radio-frequency integrated circuit device having adjustable matching circuit
Preparations for inducing immunotolerance and uses therefor
Inhaler
Topical compositions containing melicope hayselii and a method of treating skin