Invention Grant
- Patent Title: Communication method and apparatus using modulation of post-conduction oscillation frequency in switching converters
-
Application No.: US14872878Application Date: 2015-10-01
-
Publication No.: US09602015B2Publication Date: 2017-03-21
- Inventor: Alexander Mednik , Simon Krugly
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: Microchip Technology Inc.
- Current Assignee: Microchip Technology Inc.
- Current Assignee Address: US AZ Chandler
- Agency: Burr & Forman LLP
- Agent Ryan M. Corbett
- Main IPC: H02M1/00
- IPC: H02M1/00 ; H02M3/335 ; H04B5/00 ; H02M3/24

Abstract:
A communication method and apparatus that uses modulation of post-conduction oscillation frequency in switching converters is provided. The apparatus may include a converter having a magnetic element having a primary winding and a secondary winding, a first switch, a control circuit configured to repeatedly activate the first switch to couple an input voltage source to the primary winding to store electrical energy in the magnetic element, and a diode coupled to the secondary winding, said diode configured to couple the secondary winding to a load to deliver the electrical energy stored in the magnetic element, and a communication apparatus having a second switch, a first modulator capacitor coupled to the secondary winding, a first transmitter configured to activate the second switch in accordance with a first input signal, and a first receiver configured to detect a post-conduction oscillation frequency of a voltage signal at the primary or secondary windings.
Public/Granted literature
Information query