Switching power supply

Patent · Tue Jun 05 04:00:00 EDT 1984

OSTI ID:5959200

Mihalka, A M

The invention is a repratable capacitor charging, switching power supply. A ferrite transformer steps up a dc input. The transformer primary is in a full bridge configuration utilizing power MOSFETs as the bridge switches. The transformer secondary is fed into a high voltage, full wave rectifier whose output is connected directly to the energy storage capacitor. The transformer is designed to provide adequate leakage inductance to limit capacitor current. The MOSFETs are switched to the variable frequency from 20 to 50 kHz to charge a capacitor from 0.6 kV. The peak current in a transformer primary and secondary is controlled by increasing the pulse width as the capacitor charges. A digital ripple counter counts pulses and after a preselected desired number is reached an up-counter is clocked.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: TI85005993
• OSTI ID: 5959200
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700203* -- Fusion Power Plant Technology-- Power Supplies
Energy Storage
700208 -- Fusion Power Plant Technology-- Inertial Confinement Technology
CAPACITORS
ELECTRICAL EQUIPMENT
ELECTRON TUBES
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLASH TUBES
GAS DISCHARGE TUBES
LASERS
NEODYMIUM LASERS
POWER SUPPLIES
SOLID STATE LASERS
SWITCHING CIRCUITS
TRANSFORMERS