Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1992-04-27
1994-07-05
Voeltz, Emanuel T.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323224, 323282, 354402, 354484, 359698, 2502012, 2502014, G03B 1336, G05F 162
Patent
active
053270703
ABSTRACT:
In a step-up circuit for causing the emission of light of a distance measuring light emitting element, the step-up circuit outputs a step-up voltage from one terminal of a step-up capacitor. A step-up voltage level changeover circuit applies a step-up voltage to the capacitor every time the distance measuring light emitting element emits light that is higher than the step-up voltage in the normal state. The number of parts is reduced by eliminating a separate capacitor for light emission, the space for the circuit is reduced by using the capacitor having a small capacity, the soldering steps for fabrication of the circuit are automated; and the costs for assembly are ameliorated owing to the automation.
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patent: 5032864 (1991-07-01), Ishimura et al.
Endo Shinichi
Ito Akira
Kawai Michio
Saito Hiroyuki
Seki Yoichi
Seikosha Co. Ltd.
Voeltz Emanuel T.
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