Shunt switched resistor regulator with diode snubber

Patent · Tue Mar 21 00:00:00 EST 1989

OSTI ID:6069983

Ekstrand, J

This patent describes a shunt switched resistor regulator power supply for supplying a variable amount of power to a load comprising: a rectifier means for accepting AC input voltage and converting it to DC output voltage at a positive and a negative terminal; first, second, third, and fourth nodes wherein the first and the fourth nodes are coupled to the positive and negative terminals, respectively; a current limiting resistor coupled between the first and second nodes; a capacitor coupled between the second and fourth nodes; a resistor having parasitic inductance coupled between the second and third nodes; a switch coupled between the third and fourth nodes; and a diode having its anode coupled to the third node and having its cathode coupled to the second node; means coupled to the load terminals for sensing the power being delivered to the load and for controlling the switch to have a duty cycle which results in the desired load current flowing through and a desired voltage appearing across the load in accordance with control input signals received at a control input.

• Assignee: Spectra-Physics, Inc., San Jose, CA
• Patent Number(s): US 4814966
• OSTI ID: 6069983
• Resource Relation: Patent File Date: Filed date 30 Sep 1987
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
POWER SUPPLIES
VOLTAGE REGULATORS
ALTERNATING CURRENT
CAPACITORS
DESIGN
DIRECT CURRENT
POWER CONDITIONING CIRCUITS
RECTIFIERS
RESISTORS
SEMICONDUCTOR DIODES
SHUNT REACTORS
CURRENTS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
SEMICONDUCTOR DEVICES
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)
420800 - Engineering- Electronic Circuits & Devices- (-1989)