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US 4,584,518 AGranted
Circuit for transmitting energy to and from coils
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsShigenori Higashino, Yoshiro Shikano, Kanji Katsuki
Life of this patent
Estimating the term…
Abstract
A circuit for transmitting energy to and from coils is improved by connecting a coil to a bridge circuit composed of a diode and a switch such as a gate turn-off thyristor. An opposite polarity switch and diode construction may be used in addition to selectively allow the direction of current flow through the coil to be reversible.
Claims5
A circuit for transmitting energy to and from coils, comprising;
- a capacitor, a first transmitting circuit and a second transmitting circuit coupled in parallel with respect to each other, each of said transmitting circuits including first and second series circuits each having a switch and a diode, each of said transmitting circuits being completed by connecting one end of a coil to a point at which the switch and diode in said first series circuit have been connected together, and connecting the other end of said coil to a point where the switch and diode in said second series circuit have been connected together, in order to release energy through an array including a diode and to absorb energy through an array including a switch and a coil, means for controlling the quantity of the energy transmitted to the coil so as to make constant the current and polarity of said capacitor, said controlling means including means controlling the on-off operation of the switch in said first transmitting circuit and the on-off operation of the switch in said second transmitting circuit.
Dependencies are inferred from the claim text.