Ternary energy supply circuit with a high frequency rejection fi

Details Ternary energy supply circuit with a high frequency rejection fi Ternary energy supply circuit with a high frequency rejection fi

1991-10-08

1993-12-14

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318807, H02P 540

Patent

active

052706338

ABSTRACT:
An arrangement for supplying energy to a load having a low-pass frequency characteristic. A binary signal having a low-frequency component and a strong high-frequency component having a predetermined frequency is applied to a rejection filter adjusted to suppress the predetermined frequency. The rejection filter is of a type producing a ternary output signal.
The load is supplied by means of a control circuit in such a way that, in response to the signal level at the output of the rejection filter, the load is supplied with a positive polarity, with a negative polarity, or the energy supply to the load is interrupted. In this manner a ternary energy supply is obtained having low power dissipation in the control circuit and in the load.

REFERENCES:
patent: 3649922 (1972-03-01), Ralph et al.

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