GB1010498A - Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages - Google Patents
Improvements in or relating to electric circuit arrangements for measuring uni-directional voltagesInfo
- Publication number
- GB1010498A GB1010498A GB3136463A GB3136463A GB1010498A GB 1010498 A GB1010498 A GB 1010498A GB 3136463 A GB3136463 A GB 3136463A GB 3136463 A GB3136463 A GB 3136463A GB 1010498 A GB1010498 A GB 1010498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- arrangement
- transistor
- resistor
- meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
1,010,498. Voltage measurement, electric meters. GENERAL ELECTRIC CO Ltd. Aug. 10,1964 [Aug. 8,1963], No. 31364/63. Headings G1Q and G1U. In an arrangement for measuring unidirectional voltage, the voltage to be measured is applied as an input to the base of a transistor 1 whose emitter and collector are connected via resistors 4 and 6 respectively to ground, the collector also being connected via a meter 2 to a suitable voltage 3. In use the current through the resistor 6 is such that the total current supplied to the meter is substantially directly proportional to the voltage being measured when in excess of a minimum value. The arrangement compensates for the effect of the non linearity of the transistor characteristic in the region of low input voltages. The transistor 1 is a silicon junction transistor, and the resistor 4 is temperature sensitive to compensate for the effect of temperature changes. The arrangement shown will measure negative voltages only, and these may be applied via a range switching arrangement. An arrangement consisting of a resistor 9 and zener diode 8 may be incorporated for calibrating the circuit. To use this arrangement the Zener voltage (which is known) is switched to the transistor input and the potentiometer 6 is then adjusted to produce the correct reading on the meter 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3136463A GB1010498A (en) | 1963-08-08 | 1963-08-08 | Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3136463A GB1010498A (en) | 1963-08-08 | 1963-08-08 | Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1010498A true GB1010498A (en) | 1965-11-17 |
Family
ID=10322002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3136463A Expired GB1010498A (en) | 1963-08-08 | 1963-08-08 | Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1010498A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543153A (en) * | 1967-10-02 | 1970-11-24 | Gen Electric | Circuit for monitoring the current delivered by a switching regulator |
-
1963
- 1963-08-08 GB GB3136463A patent/GB1010498A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543153A (en) * | 1967-10-02 | 1970-11-24 | Gen Electric | Circuit for monitoring the current delivered by a switching regulator |
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