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US 11,270,838 B2Granted
Transformer circuitry
AssigneeSocionext Inc.
InventorsDavid Hany Gaied Mikhael, Bernd Hans Germann, Ramkumar Ganesan
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Abstract
Transformer circuitry comprising: a transformer having a primary coil and a secondary coil, the primary coil having first and second primary terminals and the secondary coil having first and second secondary terminals, and a secondary coil driver configured to drive a secondary voltage signal V2 across the secondary terminals which has a target relationship with a primary voltage signal V1 driven across the primary terminals by a primary coil driver so that an inductance value measured between the primary terminals is governed by the target relationship.
Claims18
A transformer circuitry, comprising:
- a transformer having a primary coil and a secondary coil, the primary coil having first and second primary terminals and the secondary coil having first and second secondary terminals;
- and
- a secondary coil driver configured to drive a secondary voltage signal V2 across the secondary terminals which has a target relationship with a primary voltage signal V1 driven across the primary terminals by a primary coil driver so that an inductance value measured between the primary terminals is governed by the target relationship, wherein
- the secondary coil driver is implemented as the primary coil driver and a capacitor network connected between the primary coil and the secondary coil, the capacitor network is configured to apply a scaled version of the primary voltage signal V1 to the secondary coil as the secondary voltage signal so that the target relationship is V2∝V1×S, where S is a scaling factor, and
- the capacitor network comprises programmable capacitors, and wherein the secondary coil driver is configured to control the scaling factor S based on a control voltage applied to the programmable capacitors to control the target relationship.
2 more elements
A transformer circuitry, comprising:
- a transformer having a primary coil and a secondary coil, the primary coil having first and second primary terminals and the secondary coil having first and second secondary terminals;
- and
- a secondary coil driver configured to drive a secondary voltage signal V2 across the secondary terminals which has a target relationship with a primary voltage signal V1 driven across the primary terminals by a primary coil driver so that an inductance value measured between the primary terminals is governed by the target relationship, wherein
- the secondary coil driver comprises an amplifier connected between the primary coil and the secondary coil, the amplifier configured to generate the secondary voltage signal V2 based on the primary voltage signal V1 so that the target relationship is V2∝V1×A, where A is an amplification factor, and
- the amplifier comprises first and second sub-amplifiers, the first sub-amplifier connected between the first primary terminal and the first secondary terminal, and the second sub-amplifier connected between the second primary terminal and the second secondary terminal.
2 more elements
A transformer circuitry, comprising:
- a transformer having a primary coil and a secondary coil, the primary coil having first and second primary terminals and the secondary coil having first and second secondary terminals;
- and
- a secondary coil driver configured to drive a secondary voltage signal V2 across the secondary terminals which has a target relationship with a primary voltage signal V1 driven across the primary terminals by a primary coil driver so that an inductance value measured between the primary terminals is governed by the target relationship, wherein
- the secondary coil driver is implemented as the primary coil driver and a capacitor network connected between the primary coil and the secondary coil, the capacitor network configured to apply a scaled version of the primary voltage signal V1 to the secondary coil as the secondary voltage signal so that the target relationship is V2∝V1×S, where S is a scaling factor, and
- the capacitor network comprises first and second capacitive potential dividers, the first capacitive potential divider connected so that a voltage signal applied at the first secondary terminal is dependent on a voltage signal applied at the first primary terminal, and the second capacitive potential divider connected so that a voltage signal applied at the second secondary terminal is dependent on a voltage signal applied at the second primary terminal.
2 more elements
Dependencies are inferred from the claim text.