MULTI-FUNCTIONAL PCB FOR ASSEMBLING GaN-BASED POWER CONVERTER

Yanbo Zou; Fada Du; Chao Tang; Wenjie Lin

Patent

Atlas literature

Patent

US 12,155,313 B2

MULTI-FUNCTIONAL PCB FOR ASSEMBLING GaN-BASED POWER CONVERTER

Yanbo Zou, Fada Du, Chao Tang, Wenjie Lin

INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD., Suzhou (CN)·Nov. 26, 2024·US

Drawings

Patent drawings and their descriptions. Click a drawing to enlarge it.

FIG. 1

process tool top view

FIGS. 1A and 1B respectively depict a schematic top view and a circuit diagram of a GaN-based power converter according to some embodiments of the present …

FIG. 2

FIG. 2 depicts functional block diagram of a primary controller according to some embodiments of the present disclosure;

FIG. 3

FIG. 3 depicts functional block diagram of a secondary controller according to some embodiments of the present disclosure;

FIG. 4

FIG. 4 shows signal waveforms when the primary con- troller of

FIG. 5

process tool top view

FIGS. 5A and 5B respectively depict a schematic top view and a circuit diagram of a GaN-based power converter according to other embodiments of the present …

FIG. 6

FIG. 6 depicts functional block diagram of a secondary controller according to some embodiments of the present disclosure;

FIG. 7

FIG. 7 depicts functional block diagram of a primary controller according to some embodiments of the present disclosure;

FIG. 8

FIG. 8 shows signal waveforms when the secondary controller of

FIG. 9

process tool top view

FIGS. 9A and 9B respectively depict a schematic top view and a circuit diagram of a GaN-based power converter according to other embodiments of the present …

FIG. 10

FIG. 10 depicts functional block diagram of a primary controller according to some embodiments of the present disclosure;

FIG. 11

FIG. 11 depicts functional block diagram of a secondary controller according to some embodiments of the present disclosure;

FIG. 12

FIG. 12A shows signal waveforms when the primary controller of

FIG. 13

apparatus side view

FIG. 13 depicts a simpliﬁed side view of a GaN-based power converter according to some embodiments of the 5 present disclosure;

FIG. 14

FIG. 14 depicts a simpliﬁed exploded view of a multi- functional PCB showing a built-in planar transformer and a built-in planar magnetic coupler according to …

FIG. 15

FIG. 15 depicts a simpliﬁed exploded view of a variation of the multi-functional PCB of

FIG. 16

FIG. 16 depicts a simpliﬁed exploded view of a multi- functional PCB showing a built-in planar transformer and a built-in planar magnetic coupler according to …

FIG. 17

FIG. 17 depicts a simpliﬁed exploded view of a variation of the multi-functional PCB of

FIG. 18

FIGS. 18A-18C depict various shapes of the planar coils 20 according to some embodiments of the present disclosure;

FIG. 19

FIG. 19 depicts a ﬂow chart of a method for manufac- turing a GaN-based power converter according to an embodiment of the present disclosure;

FIG. 20

FIG. 20 depicts a ﬂow chart of a method for manufac- 25 turing a multifunctional-PCB according to some embodi- ments of the present disclosure;

FIG. 21

FIG. 21 depicts a ﬂow chart of a method for manufac- turing a multifunctional-PCB according to other embodi- ments of the present disclosure. 30

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

1 independent · 9 dependent

1
IndependentGaN HEMTferrite coresmulti-functional PCB for GaN-based power converter
A multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package, the multi-functional PCB comprising: a built-in transformer comprising a transformer primary winding and a transformer secondary winding; a built-in coupler comprising a coupler primary winding and a coupler secondary winding; a plurality of conductive traces and conductive vias for providing electrical connection among the built-in transformer, the built-in coupler and the plurality of components; wherein each of the transformer primary winding, the transformer secondary winding, the coupler primary winding and the coupler secondary winding is constructed with one or more planar conductive coils respectively formed on one or more PCB layers; the one or more PCB layers are stacked and the one or more planar conductive coils are aligned with each other such that the built-in transformer and the built-in coupler can share a common pair of ferrite cores; the built-in transformer is conﬁgured to transfer power at a switching frequency by switching on and off a pri-mary switch connected to the transformer primary winding and a secondary switch connected to the transformer secondary winding; and the built-in coupler is conﬁgured to transfer a carrier signal from a secondary-side controller conﬁgured to control the switching on and off of the secondary switch to a primary-side controller conﬁgured to control the switching on and off of the primary switch so as to ensure that the primary switch and the secondary switch turn on and off alternately; the carrier signal transferred by the coupler has a carrier frequency different from the switching frequency of the transformer such that cross-talk between the transformer and the coupler can be avoided, wherein the primary-side controller comprises: a primary driver conﬁgured to generate a primary control signal for controlling the primary switch; an oscillator conﬁgured to continually generate a carrier wave; a modulator conﬁgured to: receive the carrier wave from the oscillator and the primary control signal from the primary driver; and modulate the carrier wave based on the primary control signal to generate the carrier signal; and a primary band-pass ﬁlter conﬁgured to ﬁlter out noises from the carrier signal.
1. 2
  Dependent← claim 1multi-functional PCB for GaN-based power converter
  The multi-functional printed circuit board (PCB) according to claim 1, wherein the transformer primary winding comprises a transformer primary coil formed on a ﬁrst PCB layer; and the transformer primary winding comprises a transformer secondary coil formed on a second PCB layer; and the ﬁrst PCB layer is disposed adjacent to the second PCB layer such that the transformer primary coil is mag-netically coupled with the transformer secondary coil to form a transformer layer assembly.
2. 5
  Dependent← claim 1multi-functional PCB for GaN-based power converter
  The multi-functional printed circuit board (PCB) according to claim 1, wherein the transformer primary winding comprises a ﬁrst transformer primary coil formed on a ﬁrst PCB layer; and a second transformer primary coil formed on a sixth PCB layer and electrically connected with the ﬁrst transformer primary coil; the transformer primary winding comprises: a ﬁrst transformer secondary coil formed on a second PCB layer; and a second transformer secondary coil formed on a ﬁfth PCB layer and electrically connected with the ﬁrst transformer secondary coil; the ﬁrst PCB layer is disposed adjacent to the second PCB layer to form a ﬁrst transformer layer assembly; and the ﬁfth PCB layer is disposed adjacent to the sixth PCB layer to form a second transformer layer assembly.
3. 8
  Dependent← claim 1multi-functional PCB for GaN-based power converter
  The multi-functional printed circuit board (PCB) according to claim 1, wherein the secondary-side controller comprises a secondary band-pass ﬁlter conﬁgured to ﬁlter out noises from the carrier signal transferred by the built-in coupler.

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

multi-functional PCB for GaN-based power converter

coupler_secondary_coil_layercoupler secondary coil layer

coupler_primary_coil_layercoupler primary coil layer

transformer_secondary_coil_layertransformer secondary coil layer

transformer_primary_coil_layertransformer primary coil layer

Materials

Materials described outside the worked examples.

GaN HEMT

Primary Switch And Secondary Switch Transistor Material

ferrite cores

Magnetic Core Shared By Transformer And Coupler

Cited prior art

Patents and literature cited by this patent (applicant and examiner references).

Cited patents · 20

US 8,031,494 B28,031,494 B2 * 10/2011 Brkovic............ H02M 3/33523examiner
US 8,310,327 B28,310,327 B2 * 11/2012 Willers................... H01F 27/06examiner
CN 104934209 ACN 104934209 A 9/2015
CN 106130349 ACN 106130349 A 11/2016
US 10,128,766 B110,128,766 B1 * 11/2018 Strijker............. H02M 3/33584examiner

Why these are connected

Related documents with shared materials, methods, properties, or citations.

patent2018cites
POWER ELECTRONIC BUILDING BLOCK USING SERIES-STACKED GALLIUM-NITRIDE HEMTs
Direct citation

MULTI-FUNCTIONAL PCB FOR ASSEMBLING GaN-BASED POWER CONVERTER | Matter42 Literature