Vibration type actuator apparatus

Details Vibration type actuator apparatus Vibration type actuator apparatus

1993-06-10

1995-07-25

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

054365210

ABSTRACT:
A vibration type actuator apparatus which obtains a driving force by applying an AC signal to an electro-mechanical energy conversion element to generate a vibration force. First and second switching elements are alternately turned on to supply a driving current to the primary coil of a transformer, thereby operating the transformer, and the transformer applies the AC signal to the energy conversion elements. When the two switching elements are simultaneously turned on, the primary coil is short-circuited to immediately consume vibration driving energy when the actuator apparatus is stopped.

REFERENCES:
patent: 4952834 (1990-08-01), Okada
patent: 4965481 (1990-10-01), Kashiyama
patent: 5004964 (1991-04-01), Kataoka et al.
patent: 5013982 (1991-05-01), Sasaki
patent: 5021700 (1991-06-01), Takahashi et al.
patent: 5057734 (1991-10-01), Tsuzuki et al.
patent: 5093606 (1992-03-01), Adachi et al.
patent: 5136199 (1992-08-01), Kawai

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