High power pulser

• US 4,251,741 A
• Filed: 02/08/1979
• Issued: 02/17/1981
• Est. Priority Date: 02/08/1979
• Status: Expired due to Term

• Current Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Original Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Inventors: Hooper, Edward H., Gardenghi, Robert A.
• Primary Examiner(s): Heyman, John S.
• Application Number:
  US06/010,204
• Time in Patent Office: 740 Days
• Field of Search: 328/65, 307/246, 307/260, 307/268, 307/252 Q
• US Class Current: 327/184
• CPC Class Codes: H03K 3/57 the switching device being a semiconductor device

Abstract

A high power pulser, suitable for high energy laser and radar applications, that provides both uniform loading on the source and power combining to achieve high peak power output pulses while eliminating the customary transformer-rectifier power supply is realized by connecting a number of conventional line type AC resonant charging pulsers together in a manner that allows them to be sequentially charged from a polyphase A.C. generator and, upon command, simultaneously discharged into a load.

Claims

1. A high power pulser comprising an m phase A.C. generator each phase feeding n parallel pulse forming networks, m and n being integers not less than 2,

an output means,

means comprising a controlled switch means controlling the input of each pulse forming network and a command charge switching circuit controlling said controlled switch means sequentially in response to A.C. generator output phase relationships for effecting sequential charging of said pulse forming networks by said A.C. generator, and

means for simultaneously discharging said pulse forming neworks into said output means.

2. A high power pulser as defined in claim 1 wherein said means for simultaneously discharging said pulse forming networks comprises

a pulse forming network discharge circuit, and

trigger means, said trigger means activating said discharge circuit periodically to effect an output pulse repetition rate that is a sub-multiple of the A.C. generator frequency.

3. A high power pulser as defined in claim 2 wherein said pulse forming networks are line type A.C. resonant charging pulsers.

4. A high power pulser as defined in claim 3 including a resonant charging inductor in each A.C. generator phase feed line.

5. A high power pulser as defined in claim 4 wherein said controlled switch means are silicon controlled rectifiers.

6. A high power pulser as defined in claim 5 wherein said pulse forming network discharge circuit is a reverse switching rectifier switching circuit.