Module power supply

• US 4,652,769 A
• Filed: 02/14/1984
• Issued: 03/24/1987
• Est. Priority Date: 02/14/1984
• Status: Expired due to Fees

• Current Assignee: Ion Tech, Inc.
• Original Assignee: Ion Tech, Inc.
• Inventors: Thornton, Gary E., Smith, Robert B.
• Primary Examiner(s): Pellinen, A. D.
• Assistant Examiner(s): DeBoer, Todd E.
• Application Number:
  US06/580,107
• Time in Patent Office: 1,134 Days
• Field of Search: 307/31, 307/24, 307/26, 307/35, 307/85, 307/86, 307/64, 307/130, 307/28, 307/141, 307/141.4, 307/143, 307/140, 307/43, 307/598, 307/596, 307/597, 323/267, 361/413, 361/1, 361/343, 361/392-394, 361/397, 361/166, 364/492, 364/900, 340/825.06, 340/825.07
• US Class Current: 307/31
• CPC Class Codes: H02M 3/3376 with automatic control of output voltage or current

Abstract

A multisource power supply for supplying a plurality of various power levels from a common AC source, including a plurality of switchable power source modules, a power line conditioner PLC including a high voltage switching supply and logic level supply coupled between the AC source and each of the power source modules, a common controller coupled to each of the power source modules for setting and monitoring the output of each of the modules, each of the modules being removable from the multisource power supply, and an interlock control responsive to removal of any of the modules for disabling the high voltage switching supply.

Claims

1. A multisource power supply used in supplying a plurality of predetermined power outputs from a common AC source, comprising

a plurality of switchable power source modules, each of said modules being removable from said multisource power supply,

a power line conditioner including a high voltage switching supply and a first logic voltage supply coupled between said AC source and each of said power source modules, and

a common controller coupled to each of said power source modules for outputting control signals for setting and for receiving data signals for monitoring the power output of each of said power source modules,

wherein said power line conditioner further includes an internal interlock control responsive to removal of any of said power source modules for disabling said high voltage switching supply and said power sources modules transform said high voltage switching supply into said plurality of predetermined power outputs in response to receipt of control signals from said common controller.

2. The supply of claim:

1, wherein said power line conditioner further provides a second logic voltage supply, said internal interlock control upon activation disrupting only said high voltage supply and said first logic voltage supply.

3. The supply of claim 1, wherein each of said modules includes a display, said display being switchable between actual values being monitored and target values to be established.

4. The supply of claim 1, wherein each of said modules includes a first settable switch for allowing change of the power output of each said module, said common controller including a data entry keypad, and a second settable switch on each of said module for allowing data entry via said keypad.

5. The supply of claim 1, wherein said controller includes a memory, means entering a plurality of power outputs for each of said modules in said memory, and means for activating any of said plurality of power outputs as the start up mode of said supply.

6. The supply of claim 1, wherein each of said modules includes a display and a limit switch, means responsive to activation of said limit switch to display a preset limit on said display, and means for altering said limit.

7. The supply of claim 1, wherein said power modules are mounted in a rack, said controller constituting a further module mounted in said rack, said controller further including an external interlock control for inhibiting operation of said controller in response to predetermined disruption conditions external to said power supply and switch means coupled to said external interlock circuit for activating the power supply in the absence of a predetermined disruption condition.

8. The supply of claim 1, wherein said controller further includes means monitoring the actual output of each module when said controller directs each module to produce a zero output, means for storing said actual output as an offset correction, and means responsive to each subsequent monitoring of a module output to correct the monitored value by said offset.

9. The supply of claim 1, further including external interlock means, said controller monitoring said external interlock means and being responsive to a predetermined condition for setting the output of each of said power source modules to zero.

10. The supply of claim 1, wherein each of said power modules includes control means modulating the duty cycle of switching pulses for varying the power output of said power module, a first feedback loop returning actual power values to said control means for adjusting said power output, a second feedback loop returning actual power values to said common controller, said common controller responding to said feedback values for providing a data signal to at least one of said control means for effecting changes in the power output of at least one of said power modules.

11. The supply of claim 1, wherein said common controller is coupled to said power line conditioner for receiving an interrupt signal in response to removal of any of said power source modules.

12. A multisource power supply used in supplying a plurality of predetermined power outputs from a common AC source comprising

a plurality of switchable power source modules, each of said modules being removable from said supply,

a power line conditioner including a high voltage switching supply and logic level supply coupled between said AC source and each of said power source modules, and

a common controller coupled to each of said power source modules for outputting control signals for setting and for receiving data signals for monitoring the power output of each of said power source modules,

wherein said power line conditioner further includes an internal interlock control for sensing removal of any of said modules for disabling said high voltage switching supply, and

wherein each of said power source modules includes a source of pulses operatively coupled to said controller, a transformer for transforming said high voltage switching supply into one of said plurality of predetermined power outputs, a gating circuit coupled to said source of pulses and responsive to pulse inputs for driving said transformer to provide one of said plurality of predetermined power outputs, and means located between said source of pulses and said gating circuit for increasing the swing of said pulses, thereby creating faster rise times of the leading edges of said pulses to increase the switching speed of said gating circuit.

13. The supply of claim 12, wherein said means comprises a level shifting circuit which doubles the swing of said pulse.

14. A multisource power supply used in supplying a plurality of predetermined power outputs from a common AC source, comprising

a plurality of switchable power source modules, each of said modules being removable from said supply,

a power line conditioner including a high voltage switching supply and logic level supply coupled between said AC source and each of said power source modules, and

a common controller coupled to each of said power source modules for outputting control signals for setting and for receiving data signals for monitoring the power output of each of said power source modules,

wherein said power line conditioner further includes an internal interlock control for sensing removal of any of said power source modules for disabling said high voltage switching supply, and

wherein each of said power source modules include a source of pulses operatively coupled to said controller, a transformer for transforming said high voltage switching supply into one of said plurality of predetermined power outputs, a gating circuit coupled to said source of pulses and responsive to pulse inputs for driving said transformer to provide output power, and means located between said source of pulses and said gating circuit for increasing the swing of said pulses, thereby creating faster rise times of the leading edges of said pulse to increase the switching speed of said gating circuit,

said power line conditioner further including a first source of clock signals coupled to each of said power source modules, and

said controller including a second source of clock signals, said first and second sources of clock signals being asynchronous.