Resources Contact Us Home
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
Semiconductor device including a clock generating circuit for generating an internal signal having a coarse delay line, a fine delay line and a selector circuit
Thermoplastic fluoropolymer composition
Orthogonal tunable antenna array for wireless communication devices
Method and system for efficient DRX operation during handover in LTE
High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
Method for incubating the contents of a receptacle
  Randomly Featured Patents
Exhaust gas cleaning system for internal combustion engine
Thermo-electric cooled motorcycle helmet
System and method for aligning an inspection probe and maintaining uniform spacing between the probe surface and an inspection surface
Photocatalyst water treating apparatus
Process for treatment of a gaseous mixture by pressure swing adsorption, with variable production flow rate
Differential pressure sensor capsule with low acceleration sensitivity
Process for the production of microcapsular coating compositions containing pigment particles and compositions produced thereby
Graduated endodontal swab
Electroconductive resin composition and molded product thereof