Modular master-slave power supply controller

• US 6,157,093 A
• Filed: 09/27/1999
• Issued: 12/05/2000
• Est. Priority Date: 09/27/1999
• Status: Expired due to Term

• Current Assignee: Philips Electronics North America Corporation (Koninklijke Philips N.V.)
• Original Assignee: Philips Electronics North America Corporation (Koninklijke Philips N.V.)
• Inventors: Giannopoulos, Demetri, Wacyk, Ihor
• Primary Examiner(s): Jackson, Stephen W.
• Assistant Examiner(s): POLK, SHARON A
• Application Number:
  US09/406,648
• Time in Patent Office: 435 Days
• Field of Search: 307/38, 307/11, 307/31, 315/307, 236/47, 340/10.02, 370/451, 710/64
• US Class Current: 307/38
• CPC Class Codes: H02M 1/007 Plural converter units in cascade push-pull DC/DC converters with pre-regulator H02M3/3374; DC-AC converters following a DC-DC stage including a high frequency transformer H02M7/4807; DC-AC converters following a DC-DC conversion stage generating periodically varying voltages H02M7/4826
• CPC Class Codes: H02M 1/4225 using a non-isolated boost converter
• CPC Class Codes: H02M 7/48 using discharge tubes with control electrode or semiconductor devices with control electrode
• CPC Class Codes: H05B 41/282 with semiconductor devices H05B41/2806, H05B41/288, H05B41/295 take precedence
• CPC Class Codes: H05B 41/36 Controlling
• CPC Class Codes: H05B 47/18 via data-bus transmission
• CPC Class Codes: Y02B 20/00 Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
• 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 master-slave programmable controller arrangement is disclosed for implementing control schemes in various control system topologies. The arrangement employs a modular design which allows a master unit to set operational modes for one or more instances of the same generic slave unit. The master unit and the slave unit communicate via a communications interface. Each slave unit is configured by the master unit to monitor/control one or more components or stages of, for example, a power supply.

Claims

1. A power control circuit comprising:

a master integrated circuit (IC) including a controller and a master communication interface; and

at least one slave integrated circuit (IC) including an interface circuit and a slave communication interface, the interface circuit including an A/D converter, a digital signal processor and a PWM generator and being capable of receiving at least one signal from a component or stage of a control circuit and controlling the component or stage in accordance with the received signal,

wherein the slave IC is capable of being programmed by the master IC through the communication interfaces to interface and control one or more different components or stages of the control circuit.

2. The circuit according to claim 1, wherein the power supply control circuit controls a lighting device.

3. The circuit according to claim 1, wherein the master communication interface and the slave communication are two-way digital interfaces.

4. The circuit according to claim 1, wherein the master IC further comprises an external communication interface.

5. The circuit according to claim 1, wherein the master communication interface and the slave communication are wireless interfaces.

6. The circuit according to claim 1, wherein the at least one slave IC is capable of being programmed in accordance with one or more predetermined modes.

7. The circuit according to claim 6, wherein the one or more predetermined modes are determined in accordance with a specification of the component or stage to be interfaced.

8. The circuit according to claim 1, wherein the slave IC is an application specific integrated circuit (ASIC).

9. The circuit according to claim 1, wherein the master IC and the slave IC are capable of being configured to control a plurality of different power control topologies.

10. The circuit according to claim 1, wherein the master IC further comprises a monitor circuit.

11. The circuit according to claim 1, wherein the master IC further comprises a wireless receiver.

12. The circuit according to claim 11, wherein the wireless receiver comprises an infrared receiver.

13. A control system comprising:

a plurality of slave integrated circuits (IC'"'"'s) each arranged to control one or more stages of a power supply; and

a master integrated circuit (IC) coupled to the plurality of slave IC'"'"'s through a communication network arranged to supervise operation of the plurality of slave IC'"'"'s,

wherein the plurality of slave IC'"'"'s are interchangeable with each other.

14. A control apparatus for a power supply comprising:

interchangeable means for controlling one or more circuit portions of the power supply; and

setting means for setting a predetermined mode of operation of said interchangeable means,

wherein the power supply includes a boost converter circuit portion, a down converter circuit portion and a bridge driver circuit portion.

15. The apparatus according to claim 14, wherein the power supply is capable of providing power to a high intensity discharge or fluorescent lamp.

16. The apparatus according to claim 14, wherein the interchangeable means being capable of monitoring and controlling a plurality of power supply topologies.