Samuel G Beyene

US Patent:

20130019919, Jan 24, 2013

Filed:

Jul 22, 2011

Appl. No.:

13/189354

Inventors:

Bao Hoang - San Francisco CA, US
Samuel Geto Beyene - Hayward CA, US

Assignee:

SPACE SYSTEMS/LORAL, INC. - Palo Alto CA

International Classification:

H01L 31/05
H01L 31/0224

US Classification:

136244, 136256

Abstract:

A solar panel has a number of rectilinear photovoltaic solar cells. Each solar cell has four edges, a current collector bar having at least two conductively coupled collector bar segments, and a grid of electrodes conductively coupled to the collector bar. A first collector bar segment is substantially parallel to and proximate to a first edge of the solar cell, a second collector bar segment is substantially parallel to and proximate to a second edge of the solar cell, the second edge being orthogonal with respect to the first edge. In some disclosed techniques, the solar panel has a string of solar cells disposed on a surface of the solar panel in a substantially spiral or serpentine manner and no solar cell within the string is electrically connected to another solar cell in the string by any means other than a cell interconnect.

US Patent:

20160365468, Dec 15, 2016

Filed:

Jun 9, 2015

Appl. No.:

14/734996

Inventors:

- Palo Alto CA, US
Samuel Geto Beyene - San Leandro CA, US

International Classification:

H01L 31/0465
H01L 31/18
H01L 31/0224

Abstract:

A photovoltaic solar cell, including an N-side layer proximate to a first planar surface and a P-side layer proximate to a second planar surface that is opposite to the first planar surface, is formed from a circular wafer substrate. An N-side conductive contact is electrically coupled with the N-side layer, and a P-side conductive contact electrically coupled with the P-side layer. The P-side conductive contact and the N-side conductive contact are each disposed proximate to the first planar surface, the circular wafer substrate includes an edge exclusion zone, and the P-side contact is disposed within or proximate to the edge exclusion zone.

US Patent:

20150144173, May 28, 2015

Filed:

Nov 27, 2013

Appl. No.:

14/092775

Inventors:

- Palo Alto CA, US
Samuel Geto Beyene - Hayward CA, US

Assignee:

Space Systems/Loral, LLC - Palo Alto CA

International Classification:

H01L 31/05

US Classification:

136244

Abstract:

A photovoltaic solar cell assembly includes a bypass diode, a first and a second planar solar cell. Each of the first and the second solar cell includes a front facing side and a rear facing side, each rear facing side including a respective conductive surface, each front facing side including a respective current collector bar, and corresponding grid of metallic lines conductively coupled with the current collector bar. A first terminal of the bypass diode is electrically coupled with the conductive surface of the first solar cell. A second terminal of the bypass diode is electrically coupled with the current collector bar of the second solar cell. Electrical coupling of the bypass diode with the first solar cell and the second solar cell excludes any external wiring or busbar.