US4024415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detecting device for detecting battery outlet voltage
Assignee: Individual
•
Filing: 1975-12-19
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Granted: 1977-05-17
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Expires: 1995-12-19
Abstract
Abstract A detecting device for detecting battery output voltage comprises a voltage detector having at least a pair of MOS transistors connected in series such that at least one of said MOS transistors shifts to its conductive state when the battery output voltage falls below a predetermined value to provide one type logic level signal and remains non-conductive when the battery output voltage is above the predetermined value to provide the other type logic signal. A switching circuit comprised of a complementary MOS inverter receives the output logic signal derived from the voltage detector and switches states in response to the two logic signals to accordingly control the energization of a display element in dependence upon the battery output voltage.
Inventors
- 👤 Yoshiaki Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/165; G01R19/16504; G01R19/16519; G01R19/16533; G01R19/16538; G01R19/16542; G04; G04C; G04C10/00; G04C10/04; H; H03; H03K; H03K17/00; H03K17/30; H03K17/302; Y; Y10; Y10S; Y10S320/00; Y10S320/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
A detecting device for detecting the output voltage of a battery or cell comprising: voltage detecting means connectable to a battery whose output voltage is to be detected and including at least a pair of MOS transistors connected in a series such that at least one of said MOS transistors shifts to its conducting state in response to the battery output voltage falling below a predetermined value thereby providing one output signal indicative of adequate battery output voltage and shifts to its nonconducting state in response to the battery output voltage being above said predetermined value thereby providing another output signal indicative of unacceptably low battery output voltage; and a switching circuit comprised of a complementary MOS inverter connected to receive the output signals derived from said voltage detecting means and operative to switch states in response thereto to provide corresponding inverted output signals indicative of the battery output voltage level.
Claim 2
Dependent Claim
151 words
A detecting device for detecting the output voltage of a battery or cell comprising: voltage detecting means connectable to a battery whose output voltage is to be detected and including at least a pair of MOS transistors connected in a series such that at least one of said MOS transistors shifts to its conducting state in response to the battery output voltage falling below a predetermined value thereby providing one output signal indicative of adequate battery output voltage and shifts to its nonconducting state in response to the battery output voltage being above said predetermined value thereby providing another output signal indicative of unacceptably low battery output voltage; and a switching circuit comprised of a complementary MOS inverter connected to receive the output signals derived from said voltage detecting means and operative to switch states in response thereto to provide corresponding inverted output signals indicative of the battery output voltage level.
Claim 3
Dependent Claim
32 words
A detecting device according to claim 1; including switching means connected to said voltage detecting means for selectively switching said voltage detecting means to the battery whose voltage is to be detected.
Claim 4
Dependent Claim
80 words
A detecting device according to claim 1; wherein said voltage detecting means comprises a first voltage detector stage comprised of a series connection of MOS transistors and a second voltage detector stage connected to said first voltage detector stage and comprised of a series connection of said pair of MOS transistors, the conductive resistances of said pair of MOS transistors of said second voltage detector stage being higher than that of said MOS transistors of said first voltage detector stage.
Claim 5
Dependent Claim
25 words
A detecting device according to claim 1; wherein said voltage detecting means includes means for amplifying the output signals produced by said voltage detecting means.
Claim 6
Dependent Claim
45 words
A detecting device according to claim 1; wherein said voltage detecting means includes a common output terminal to which is applied the output signals produced by said voltage detecting means; and means connecting said output terminal to the input side of said complementary MOS inverter.
References Cited (Backward Citations)
US3038110A
Cited
US3604952A
Cited
US3702943A
Cited
US3862441A
Cited
US3928846A
Cited
US3877001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |