POWER LINE COMMUNICATION AC/DC ADAPTOR

• US 20160080036A1
• Filed: 09/11/2015
• Published: 03/17/2016
• Est. Priority Date: 09/12/2014
• Status: Active Grant

• Current Assignee: Asys Corporation, IOT Technology Corporation
• Original Assignee: Asys Corporation, IOT Technology Corporation
• Inventors: SU, TZU-CHIEH
• Granted Patent: US 9,660,696 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02M 1/123 Suppression of common mode voltage or current
• CPC Class Codes: H02M 1/126 using passive filters
• CPC Class Codes: H02M 1/4208 Arrangements for improving power factor of AC input
• CPC Class Codes: H02M 1/44 Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• CPC Class Codes: H04B 3/548 the power on the line being DC arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

A power line communication (PLC) AC/DC adaptor includes a filter, a rectifier, a power factor correction circuitry, and a PLC module. The filter includes a differential mode choke and a common mode choke. The differential mode choke is coupled to AC. The common mode choke is coupled to the differential mode choke. The rectifier is coupled to the common mode choke. The power factor correction circuitry is coupled to the rectifier. The PLC module is coupled to AC to process a PLC signal from AC and output a control signal.

Claims

1. A power line communication (PLC) AC/DC adaptor, comprising:

a filter comprising a differential mode choke and a common mode choke, the filter coupled to AC to receive a PLC signal;

a rectifier coupled to the filter;

a power factor correction circuitry coupled to the rectifier;

a transformer module comprising a primary side and a secondary side, wherein the primary side is coupled to an output of the power factor correction circuitry, the secondary side comprises a controller; and

a PLC module coupled to AC to receive the PLC signal and coupled to the secondary side of the transformer module;

wherein the PLC signal is processed by the PLC module, the PLC module outputs a first control signal to the secondary side of the transformer module;

wherein the PLC signal is processed by the filter, the rectifier, and the power factor correction circuitry in that order, the power factor correction circuitry outputs a power signal to the primary side of the transformer module;

wherein the first control signal is processed by the controller, the controller outputs a second control signal, the transformer module outputs the power signal and the second control signal.

2. The PLC AC/DC adaptor as claim 1, wherein the PLC module comprises a transformer, an amplifier, a microcontroller, a memory, a antenna, and a coupler, the transformer is coupled between AC and the amplifier, the microcontroller is coupled to the amplifier, the memory and the coupler, and the antenna is coupled to the memory.

3. The PLC AC/DC adaptor as claim 2, wherein the transformer is an intermediate frequency transformer.

4. The PLC AC/DC adaptor as claim 2, wherein the amplifier is an operational amplifier.

5. The PLC AC/DC adaptor as claim 2, wherein the memory is a non-volatile memory.

6. The PLC AC/DC adaptor as claim 2, wherein the antenna is a radio frequency (RF) antenna.

7. The PLC AC/DC adaptor as claim 2, wherein the coupler is an optical coupler.

8. The PLC AC/DC adaptor as claim 1, wherein the rectifier is a full-bridge rectifier.

9. The PLC AC/DC adaptor as claim 1, wherein the rectifier is a half-bridge rectifier.

10. A PLC AC/DC adaptor, comprising:

a PLC/differential mode choke set comprising a differential mode choke and a PLC module, and

an AC/DC adaptor;

wherein an output of the PLC/differential mode choke set is coupled to the AC/DC adaptor through the differential mode choke, inputs of the differential mode choke and the PLC module are coupled to AC, the adaptor is configured to convert AC to DC, the PLC module processes a PLC signal from AC and outputs a first control signal through the AC/DC adaptor.

11. The PLC AC/DC adaptor as claim 10, wherein the PLC module comprises an transformer, an operational amplifier, a microcontroller, a memory, a antenna, and a coupler, the transformer is coupled between AC and the amplifier, the microcontroller is coupled to the amplifier, the memory and the coupler, the antenna is coupled to the memory.

12. The PLC AC/DC adaptor as claim 11, wherein the transformer is an intermediate frequency transformer.

13. The PLC AC/DC adaptor as claim 11, wherein the amplifier is an operational amplifier.

14. The PLC AC/DC adaptor as claim 11, wherein the memory is a non-volatile memory.

15. The PLC AC/DC adaptor as claim 11, wherein the antenna is a radio frequency (RF) antenna.

16. The PLC AC/DC adaptor as claim 11, wherein the coupler is an optical coupler.