US 2018/0122566 A1Published application

Transformer simulating circuit and simulating method of transformer

AssigneeJiangsu Leader Electronics Inc.

InventorRene Frederik KOCH

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Abstract

A transformer simulating circuit includes a primary side, a secondary side, a first coupling capacitor, and a second coupling capacitor. The primary side includes a primary core-loss resistor, a primary intra-winding capacitor, and a magnetizing inductor connected in parallel, and includes a primary leakage inductor module connected between a primary winding and the primary intra-winding capacitor, and a primary winding resistor connected to the primary leakage inductor module. The secondary side includes a secondary leakage inductor module connected between a secondary winding and a secondary intra-winding capacitor, and a secondary winding resistor connected to the secondary leakage inductor module. The first coupling capacitor and the second coupling capacitor are connected between the primary side and the secondary side. Therefore, a simulated frequency response of the transformer simulating circuit is closer to a measured frequency response of a real transformer.

Claims32

Dependent claims

A transformer simulating circuit, comprising:

a primary side, comprising:
a primary core-loss resistor;
a primary intra-winding capacitor;
a magnetizing inductor;
wherein the magnetizing inductor, the primary core-loss resistor, and the primary intra-winding capacitor are electronically connected in parallel;
and
a primary leakage inductor module, comprising a first end, a second end, a third end, and a fourth end;
wherein the first end and the second end of the primary leakage inductor module are respectively electronically connected to two ends of the primary intra-winding capacitor;
a primary winding, comprising a first terminal and a second terminal;
wherein the first terminal and the second terminal of the primary winding are respectively electronically connected to the third end and the fourth end of the primary leakage inductor module;
and
a primary winding resistor, comprising an end electronically connected to the first end of the primary leakage inductor module;
a secondary side, comprising:
a secondary winding resistor;
a secondary leakage inductor module, comprising a first end, a second end, a third end, and a fourth end;
wherein the third end of the secondary leakage inductor module is electronically connected to an end of the secondary winding resistor;
a secondary winding, coupled with the primary winding, and comprising a first terminal and a second terminal;
wherein the first terminal and the second terminal of the secondary winding are respectively electronically connected to the first end and the second end of the secondary leakage inductor module;
and
a secondary intra-winding capacitor, electronically connected between the third end and the fourth end of the secondary leakage inductor module;
a first coupling capacitor, electronically connected between the first end of the primary leakage inductor module and the third end of the secondary leakage inductor module;
and
a second coupling capacitor, electronically connected between the second end of the primary leakage inductor module and the fourth end of the secondary leakage inductor module.

20 more elements

A simulating method of a transformer, comprising steps of:

providing a primary winding;
wherein the primary winding comprises a first terminal and a second terminal;
providing a primary core-loss resistor;
providing a primary intra-winding capacitor;
providing a magnetizing inductor;
wherein the magnetizing inductor is electronically connected to the primary core-loss resistor and the primary intra-winding capacitor in parallel;
providing a primary leakage inductor module;
wherein the primary leakage inductor module comprises a first end, a second end, a third end, and a fourth end, the first end and the second end of the primary leakage inductor module are respectively electronically connected to two ends of the primary intra-winding capacitor, and the third end and the fourth end of the primary leakage inductor module are respectively electronically connected to the first terminal and the second terminal of the primary winding;
providing a primary winding resistor;
wherein the primary winding resistor comprises an end electronically connected to the first end of the primary leakage inductor module;
providing a secondary winding resistor;
providing a secondary leakage inductor module;
wherein the secondary leakage inductor module comprises a first end, a second end, a third end, and a fourth end, and the third end of the secondary leakage inductor module is electronically connected to an end of the secondary winding resistor;
providing a secondary winding;
wherein the secondary winding is coupled with the primary winding, and comprises a first terminal and a second terminal;
wherein the first terminal and the second terminal of the secondary winding are respectively electronically connected to the first end and the second end of the secondary leakage inductor module ;
providing a secondary intra-winding capacitor;
wherein the secondary intra-winding capacitor is electronically connected between the third end and the fourth end of the secondary leakage inductor module;
providing a first coupling capacitor;
wherein the first coupling capacitor is electronically connected between the first end of the primary leakage inductor module and the third end of the secondary leakage inductor module;
and
providing a second coupling capacitor;
wherein the second coupling capacitor is electronically connected between the second end of the primary leakage inductor module and the fourth end of the secondary leakage inductor module;
forming a transformer simulating circuit;
and
implementing the transformer simulating circuit to simulate the transformer.

23 more elements

Dependencies are inferred from the claim text.