Tsz Wai Wong

US Patent:

20210012944, Jan 14, 2021

Filed:

Jul 8, 2020

Appl. No.:

16/923893

Inventors:

- Raleigh NC, US
Subhashish Bhattacharya - Raleigh NC, US
Tsz Sing Wong - Raleigh NC, US
Paul Ohodnicki - Allison Park PA, US

International Classification:

H01F 27/28
H01F 27/24
H01F 27/02

Abstract:

Various examples are provided related to transformer designs that offer very high isolation while maintaining high coupling between the windings. In one example, an isolation transformer includes a first excitation coil wound around a first core and a second excitation coil wound about a second core. The second core is electrically separated from the first core by a high resistivity magnetic material or a non-conductive material. The first and second cores can include corresponding core segments arranged in a trident geometry or a quindent geometry. The core segments can align when the first excitation coil is inserted into a void of the second excitation coil. The isolation transformer designs are mechanically separable which can result in safe, energized, plug operations.