发明名称 |
Communication Method and Apparatus using Modulation of Post-Conduction Oscillation Frequency in Switching Converters |
摘要 |
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. |
申请公布号 |
US2016182131(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
US201514872878 |
申请日期 |
2015.10.01 |
申请人 |
Microchip Technology Incorporated |
发明人 |
Mednik Alexander;Krugly Simon |
分类号 |
H04B5/00;H02M3/335 |
主分类号 |
H04B5/00 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
a converter; and a communication apparatus; wherein the converter comprises 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; wherein the converter comprises a capacitance at the primary winding and the secondary winding forming an LC circuit with the magnetic element; and wherein the communication apparatus comprises 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 an oscillation frequency of the LC circuit. |
地址 |
Chandler AZ US |