US 12,457,672 B2
Electronic circuit with isolation
Bernd Ackermann, Aachen (DE); Eugen Jacob De Mol, Eindhoven (NL); and Ludoviscus Franciscus Johannes Oostvogels, Nuenen (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/927,030
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed May 28, 2021, PCT No. PCT/EP2021/064310
§ 371(c)(1), (2) Date Nov. 22, 2022,
PCT Pub. No. WO2021/244960, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 20178423 (EP), filed on Jun. 5, 2020.
Prior Publication US 2023/0209681 A1, Jun. 29, 2023
Int. Cl. H05B 45/382 (2020.01); H01F 27/06 (2006.01); H05B 45/12 (2020.01)
CPC H05B 45/382 (2020.01) [H01F 27/06 (2013.01); H05B 45/12 (2020.01); H01F 2027/065 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A circuit, comprising:
a first printed circuit board carrying a first set of components;
a second printed circuit board carrying a second set of components, with a clearance between the first and second printed circuit boards; and
a transformer having a primary side winding and a secondary side winding, wherein the primary side winding is electrically connected to the first set of components by a first connection arrangement and the secondary side winding is connected to the second set of components by a second connection arrangement,
wherein the primary side winding and the first connection arrangement and/or the secondary side winding and the second connection arrangement comprise an insulated wire, wherein the wire is a triple insulated wire,
wherein the circuit comprises a glass, ceramic or mica spacer mounted to the first and second printed circuit board, which defines the clearance between the first and second printed circuit boards; or
a first spacer mounted to the first printed circuit board and to an intermediate support part, a second spacer mounted to the second printed circuit board and to the intermediate support part, wherein the first spacer and/or the second spacer comprises glass, ceramic or mica, the clearance between the first and second printed circuit boards being defined by the first spacer, second spacer and the support part.