Active electronic emulation of a passive circuit component
AssigneeAriel Scientific Innovations Ltd.
InventorAlon Kuperman
Life of this patent
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Abstract
An electronic emulation component for actively emulating a passive electronic component such as a capacitor or inductor having a desired value, comprises a pair of terminals for connection to an external circuit and across which the desired value is to appear, a power convertor, and a passive electronic component of the type to be emulated but having a value different from the value to be emulated and isolated from the pair of terminals by the convertor.
Claims21
An electronic emulation component for actively emulating a passive component having capacitance or inductance of a value desired to be emulated, the emulation component comprising:
- a pair of terminals for connection to an external circuit and across which said desired value to be emulated appears, thereby to provide said value to be emulated to said external circuit;
- a power convertor comprising a control unit and an emulator, the emulator for emulating said capacitance or said inductance;
- a controller connected to said power converter, said controller configured to provide a control signal to said power converter which control signal is a DC reference signal having a value equal to said value desired to be emulated;
- and
- a passive component having a value of capacitance or inductance smaller than said value desired to be emulated, the passive component isolated from said pair of terminals by said convertor, wherein said emulator is configured to provide an emulation of a capacitance CB at said pair of terminals by providing a DC reference voltage (vDC*) to said power convertor at a control current iC, wherein said reference voltage is given by:
- v
- DC
- *
- =
- 1
- C
- B
-
- ∫
- i
- C
-
- (
- t
- )
-
- dt
- .
An electronic emulation component for actively emulating a passive component having capacitance or inductance of a value desired to be emulated, the emulation component comprising:
- a pair of terminals for connection to an external circuit and across which said desired value to be emulated appears, thereby to provide said value to be emulated to said external circuit;
- a power convertor comprising a control unit and an emulator, the emulator for emulating said capacitance or said inductance;
- a controller connected to said power converter, said controller configured to provide a control signal to said power converter which control signal is a DC reference signal having a value equal to said value desired to be emulated;
- and
- a passive component having a value of capacitance or inductance smaller than said value desired to be emulated, the passive component isolated from said pair of terminals by said convertor, wherein said emulator is configured to provide an emulation of an inductance LB at said pair of terminals by providing a DC reference current (iDC*) to said power convertor at a control current vC, wherein said reference current is given by:
- i
- DC
- *
- =
- 1
- L
- B
-
- ∫
- v
- C
-
- (
- t
- )
-
- dt
- .
A method for actively emulating a first capacitance or inductance such that a value of said first capacitance or inductance appears across a pair of terminals to an external circuit, comprising:
- providing a pair of terminals;
- providing a capacitance or inductance having a second capacitance different from and smaller than said first capacitance or inductance;
- placing a decoupler between said pair of terminals and said capacitor;
- controlling said decoupler using a control signal and further controlling said decoupler using a DC reference signal having a value equal to said value of said first capacitance or inductance to appear across said pair of terminals, and wherein said control signal comprises a capacitance emulation component or an induction emulation component, wherein said capacitance or inductance emulation component is configured to provide an emulation of a capacitance or inductance CB or LB at said pair of terminals by providing a DC reference voltage or current to said decoupler at a control current or voltage iC or vC, wherein said reference voltage is given by:
- v
- DC
- *
- =
- 1
- C
- B
-
- ∫
- i
- C
-
- (
- t
- )
-
- dt
-
- or
-
- i
- DC
- *
- =
- 1
- L
- B
-
- ∫
- v
- C
-
- (
- t
- )
-
- dt
- .
Dependencies are inferred from the claim text.