Electromagnetic dent remover power supply

A power supply for an electromagnetic force system, for connection to and energizing a work coil positioned adjacent a work piece, the power supply comprising:

• a slow current pulse system comprising:
• a first triggering means for discharging said slow current pulse system through the blocking inductor at a selected time;
• and
• a first capacitor bank;
• a fast current pulse system, wherein the fast current pulse is of opposing polarity to the slow current pulse comprising:
• a second triggering means for discharging the fast current pulse system through said coil such that the current through the coil decreases rapidly and creates a pulse of tension force on the work piece;
• a second capacitor bank;
• and
• a triggered crowbar across the second triggering means and the second capacitor bank, the triggered crowbar including:
• a third triggering means including a distributed gate thyristor;
• and
• a blocking inductor.

A power supply for an electromagnetic force system, for connection to and energizing a work coil positioned adjacent a work piece, the power supply comprising:

• a slow current pulse system comprising:
• a first triggering means for discharging said slow current pulse system through the blocking inductor at a selected time;
• and
• a first capacitor bank;
• a fast current pulse system, wherein the fast current pulse is of opposing polarity to the slow current pulse comprising:
• a second triggering means for discharging the fast current pulse system through said coil such that the current through the coil decreases rapidly and creates a pulse of tension force on the work piece;
• a second capacitor bank;
• and
• a triggered crowbar across the second triggering means and the second capacitor bank, the triggered crowbar including:
• a third triggering means including at least one transistor in parallel;
• and
• a blocking inductor.

A power supply for an electromagnetic force system, for connection to and energizing a work coil positioned adjacent a work piece, the power supply comprising:

• a slow current pulse system comprising:
• a first triggering means for discharging said slow current pulse system through the blocking inductor at a selected time including;
• and
• a first capacitor bank;
• a fast current pulse system, wherein the fast current pulse is of opposing polarity to the slow current pulse comprising:
• a second capacitor bank;
• and
• a second triggering means for discharging the fast current pulse system through said coil such that the current through the coil decreases rapidly and creates a pulse of tension force on the work piece including a triggered vacuum spark-gap in series with the second capacitor bank;
• and
• a blocking inductor.

A power supply for an electromagnetic force system, for connection to and energizing a work coil positioned adjacent a work piece, the power supply comprising:

• a slow current pulse system comprising:
• a first triggering means for discharging said slow current pulse system through the blocking inductor at a selected time;
• and
• a first capacitor bank;
• a fast current pulse system, wherein the fast current pulse is of opposing polarity to the slow current pulse comprising:
• a second triggering means for discharging the fast current pulse system through said coil such that the current through the coil decreases rapidly and creates a pulse of tension force on the work piece
• a second capacitor bank;
• and
• a fast bank charger in parallel to the second capacitor bank and
• a blocking inductor.