MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202631021891 A) filed by National Institute Of Technology, Patna, Bihar, on Feb. 24, for 'a power factor correction device with duty ratio controlled capacitance compensation under dynamic load conditions.'
Inventor(s) include Somanshu, Sarva Ruvinigya; Kumar, Ramesh; and Anwar, Md. Nishat.
The application for the patent was published on Feb. 27, under issue no. 09/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure provides a power factor correction device (100) for inductive loads (104) fed by an AC supply (102). The device (100) includes a voltage sensor (106-2) and a current sensor (106-4) sensing instantaneous voltage and current waveforms, a capacitor (108-2) connected in series with a semiconductor switch (108-4) in parallel across the inductive load (104), and a processor (112) storing a reference power factor (116) and a preceding power factor value (118). The processor (112) computes a phase angle from zero-crossing instants, derives an actual power factor, and generates a duty ratio by perturbing a step size to output a pulse width modulated signal (222) rendering an effective capacitance (120) compensating the inductive reactance. Unlike conventional fixed or step-switched capacitor banks that cannot dynamically adapt to varying load conditions, the present device achieves continuously variable capacitance compensation through duty ratio controlled switching."
Disclaimer: Curated by HT Syndication.
