Cross communication arrangement for multiple solid state power controller channels

• US 9,178,355 B2
• Filed: 06/11/2012
• Issued: 11/03/2015
• Est. Priority Date: 12/02/2011
• Status: Active Grant

• Current Assignee: Hamilton Sundstrand Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Hamilton Sundstrand Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Simper, Norbert J., Greither, Markus, Michel, Alexander, Wagner, Carl A., Bellis, Andrew David
• Primary Examiner(s): Ali, Mohammad
• Assistant Examiner(s): Laughlin, Nathan L
• Application Number:
  US13/493,220
• Publication Number:
  US 20130144447A1
• Time in Patent Office: 1,240 Days
• Field of Search: 700/286
• US Class Current: 1/1
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 2310/44 for aircrafts
• CPC Class Codes: H02J 3/26 Arrangements for eliminating or reducing asymmetry in polyphase networks
• CPC Class Codes: H04L 12/40006 Architecture of a communication node current supply arrangements H04L12/10; intermediate storage or scheduling H04L49/90
• CPC Class Codes: H04L 12/40176 involving redundancy error detection or correction of the data by redundancy in hardware using active fault-masking in interconnections G06F11/2002; error detection or correction of the data by redundancy in hardware using active fault-masking in storage systems using spares or by reconfiguring G06F11/2053
• CPC Class Codes: H04L 2012/4028 the transportation system being an aircraft

Abstract

A multi-phase power control switch has multiple power controller channels, each of which includes at least one power controller having a microprocessor. Each of the microprocessors cross communicates with each other of the microprocessors using a data bus.

Claims

1. A multi-phase power control switch comprising:

a plurality of power controller channels, each of which includes at least one power controller having at least one microcontroller;

an isolator corresponding to each of said microcontrollers and connecting a cross communication line of said corresponding microcontroller to a data bus;

said data bus operable to enable cross communication between each of said microcontrollers and each other of said microcontrollers;

a switch synchronization module having a synchronization bus connected to each of said microcontrollers via a second isolator corresponding to each microcontroller; and

wherein said synchronization bus is connected to a systems level controller and wherein the systems level controller is configured to output ground referenced signals to said microcontrollers.

2. The multi-phase power control switch of claim 1, wherein at least one of said power controller channels comprises a plurality of power controllers, each of said power controllers comprising at least one microcontroller.

3. The multi-phase power control switch of claim 1, wherein each of said power controller channels comprises at least one solid state power controller.

4. The multi-phase power control switch of claim 3, wherein each of said solid state power controllers comprises at least a first primary microcontroller and a second redundant microcontroller.

5. The multi-phase power control switch of claim 4, wherein each of said first primary microcontrollers is connected to a first data bus via the corresponding isolator and wherein each of said second redundant microcontrollers is connected to a second redundant data bus via the corresponding isolator.

6. The multi-phase power control switch of claim 1, further comprising an input/output (I/O) module connecting said synchronization bus to a pin input module, and a system neutral connection connected to said pin input module.

7. The multi-phase power control switch of claim 6, wherein said pin input module is operable to program each of said microcontrollers connected to said switch synchronization bus, and wherein said pin input module is operable to be programmed via a plurality of jumper connections.

8. The multi-phase power control switch of claim 1, wherein said data bus is an I2C data bus.

9. The multi-phase power control switch of claim 1, wherein each of said power controller channels comprises a floating power supply connected to said at least one power controller, such that said floating power supply provides operational power to said at least one power controller.

10. A power distribution system comprising:

a plurality of multi-phase power control switches, wherein each of said multi-phase power control switches has a plurality of power controller channels, each of which includes at least one power controller having at least one microcontroller;

an isolator corresponding to each of said microcontrollers and connecting a cross communication line of said corresponding microcontroller to a data bus;

said data bus operable to enable cross communication between each of said microcontrollers and each other of said microcontrollers;

a switch synchronization module having a synchronization bus connected to each of said microcontrollers via a second isolator corresponding to each microcontroller; and

wherein said synchronization bus is connected to a systems level controller and wherein the systems level controller is configured to output ground referenced signals to said microcontrollers.

11. The power distribution system of claim 10, wherein at least one of said power controller channels comprises a plurality of power controllers, each of said power controllers comprising at least one microcontroller.

12. The power distribution system of claim 10, wherein each of said power controller channels comprises at least one solid state power controller.

13. The power distribution system of claim 12, wherein each of said solid state power controllers comprises at least a first primary microcontroller and a second redundant microcontroller.

14. The power distribution system of claim 13, wherein each of said first primary microcontrollers is connected to a first data bus via the corresponding isolator and wherein each of said second redundant microcontrollers is connected to a second redundant data bus via the corresponding isolator.

15. The power distribution system of claim 10, further comprising, an input/output (I/O) module connecting said synchronization bus to a pin input module, and a system neutral connection connected to said pin input module.

16. The power distribution system of claim 15, wherein said pin input module is operable to program each of said microcontrollers connected to said switch synchronization bus, and wherein said pin input module is operable to be programmed via a plurality of jumper connections.

17. The power distribution system of claim 10, wherein said data bus is an I2C data bus.

18. The multi-phase power control switch of claim 15, wherein said pin input module includes a connection to a system neutral reference voltage.