The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2000
Filed:
Nov. 26, 1997
Heihachiro Ebihara, Tokorozawa, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A circuit for driving a capacitive load using a booster having a low power consumption, which amplifies spike-like signals at high speeds and produces a large voltage and a large current, and wherein two transistors 104 and 111 are connected in series across a first power source H1 and a second power source L1 having a potential lower than that of the first power source. An output terminal OUT is provided at a portion where the two transistors are connected together, and the first transistor 104 connected between the first power source and the output terminal has a complementary relationship to the second transistor 11 connected between the output terminal and the second power source. The first transistor 104 is constituted by a PNP-type bipolar transistor or a P-type field-effect transistor, the second transistor 111 is constituted by an NPN-type transistor or an N-type field-effect transistor, and between an input terminal IN and a control terminal of each of the transistors are connected in parallel a capacitor and a means that applies a bias to the control terminal.