Circuit arrangement for transferring a signal
AssigneeU.S. Philips Corporation
InventorEckart Pech
Life of this patent
Estimating the term…
Abstract
A circuit arrangement for transferring a signal from a first A.C. circuit point to a second A.C. circuit point includes a resonant circuit and a current mirror. The input of the current mirror is connected to the resonant circuit, while its common emitter terminal is connected to the first A.C. circuit point and its output is connected to the second A.C. circuit point. In this manner one side of the resonant circuit may be grounded, even though the resonant circuit is effectively inserted between the two A.C. circuit points which are isolated from ground.
Claims4
A circuit arrangement for transferring a signal from a first A.C. circuit point to a second A.C. circuit point, which comprises:
- means for providing an A.C. input signal to said first A.C. circuit point;
- a resonant impedance circuit having first and second terminals, said first terminal being connected to an A.C. circuit ground point;
- a current mirror circuit having a common terminal, a control terminal and a controlled terminal, said control terminal being connected to said second terminal of the resonant impedance circuit, said common terminal being connected to the first A.C. circuit point, and said controlled terminal being connected to said second A.C. circuit point;
- a first D.C. current source connected from a selected D.C. potential to said current mirror control terminal;
- and
- means for obtaining an A.C. output signal from said second A.C. circuit point.
Dependencies are inferred from the claim text.