Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Digital PWM control circuit










Image Number 3 for United States Patent #4727468.

The PWM-controlled circuit includes an up/down counter and utilizes the fact that, when a numerical value is a complementary binary value, the sign is indicated by its most significant bit (sign bit). In the PWM control circuit, the up/down counter is controlled so that when its preset input receives a reference signal, a PWM signal of a duty factor proportional to the reference signal is directly obtained from the most significant bit of the output count.








 
 
  Recently Added Patents
Phosphor mixture for a discharge lamp and a discharge lamp
Air purification
Image forming apparatus and image forming method for controlling object rendering order
Parallel device including a battery module and control method thereof
Portable radiation image capturing apparatus and radiation image capturing system
Stable pharmaceutical composition and methods of using same
Conversion of acyclic symmetrical olefins to higher and lower carbon number olefin products
  Randomly Featured Patents
Multiple aperture laser system
Centre pivot irrigators
Systems for transdermal administration of medicaments
High speed optical image selection system
Joint brace and a movement restraining device therefor
Magnetic rotation-angle sensor and angle-information processing device
Monocrystalline test and reference structures, and use for calibrating instruments
Photoconductor unit
Double annular ring speaker gasket
Liquid crystal shutter