Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1988-09-08
1990-07-24
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
324414, 324537, 324555, H01L 4108, G01R 3122
Patent
active
049437526
ABSTRACT:
A piezoelectric circuit (10, 70, 100) is provided which can be employed in a wide variety of applications. The circuit (10) can be used to test the bulbs in a string (14) of Christmas Tree lights and, in a modified circuit (200) can use any suitable high voltage source (202) as a substitute for the piezoelectric crystal. The circuit (100) can also be mounted in a shoe (64), fishing lure (46), toy (56) or any other suitable application to light a light source (19). In another circuit (70) by positioning a capacitor (72) in parallel with the crystal (16) and light source (62), and positioning a normally open switch (74) between the capacitor and light source, the capacitor can be charged by repeated striking of the crystal. The circuit (70) can be used in the pedal (30) of a bicycle to generate a flashing light easily visible at night. The circuit (70) can also be mounted in a camera (90) or emergency light (36) or any other suitable application.
REFERENCES:
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patent: 4595864 (1986-06-01), Stiefelmeyer
patent: 4748366 (1988-05-01), Taylor
Todd Philip A.
Walker Bobby R.
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