G - Physics – 05 – F
Patent
G - Physics
05
F
323/4
G05F 3/20 (2006.01) G05F 3/30 (2006.01)
Patent
CA 1216329
ABSTRACT: Current stabilizing arrangement. Between a first and a second power-supply ter- minal (6, 7) the circuit arrangement comprises a first circuit which comprises the series arrangement of a first resistor (1), a second resistor (2), a third resistor (3), the collector-emitter path of a transistor (T1) whose base is connected to a point between the first and the second resistor (1, 2), and a transistor (T2) arranged as a diode. Further, the arrangement comprises a second circuit which comprises the series arrangement of a load (5), the col- lector-emitter path of a transistor (T3) whose base is connected to the point between the second and the third resistor (2, 3), and a resistor (4). In the case of supply- voltage variations the third resistor (3) limits the vol- tage variation across the second resistor (2) to a maximum value, so that the current (I2) in the second circuit can be stabilized over a wider range of supply voltages.
446927
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
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