IP Library › Granted Patent US 12,633,754
Granted Patent B2
US 12,633,754 · App. 18/436,241 · Granted May 19, 2026

Maximizing power in a photovoltaic distributed power system

Inventor: Ilan Yoscovich (Givatayim, IL)
Assignee: Solaredge Technologies Ltd.
H02J3/381H02J3/38H02J3/46H02M7/42H02J2300/26Y02E10/56
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Quick Facts
Patent No.
US 12,633,754
App. No.
18/436,241
Filed
Feb 8, 2024
Granted
May 19, 2026
Kind
B2
Examiner
LY, XUAN
Art Unit
2836
USPC
307/75
Abstract

A power harvesting system including multiple parallel-connected photovoltaic strings, each photovoltaic string includes a series-connection of photovoltaic panels. Multiple voltage-compensation circuits may be connected in series respectively with the photovoltaic strings. The voltage-compensation circuits may be configured to provide respective compensation voltages to the photovoltaic strings to maximize power harvested from the photovoltaic strings. The voltage-compensation circuits may be include respective inputs which may be connected to a source of power and respective outputs which may be connected in series with the photovoltaic strings.

Claims (33)

1 . A system comprising:

first converter circuitry configured to convert an input voltage between a pair of input terminals to a converter output voltage across a pair of output terminals;

an input power source connected to the input terminals;

a first photovoltaic (PV) power source separate from the input power source and connected to one terminal of the pair of output terminals and configured to output a first PV output voltage;

a system power device separate from and connected to the first converter circuitry and the first PV power source, wherein the system power is configured to receive a combined output voltage comprising the converter output voltage together with the first PV output voltage;

a second PV power source configured to output a second PV output voltage; and

controller circuitry configured to control the converter output voltage based on the second PV output voltage.

2 . The system of claim 1 , wherein the controller circuitry is configured to control the converter output voltage based on a maximum power of the second PV power source.

3 . The system of claim 1 , wherein the controller circuitry is configured to control the converter output voltage based on a maximum power of the first PV power source.

4 . The system of claim 1 , wherein the controller circuitry is configured to control the converter output voltage based on a first maximum power of the first PV power source and a second maximum power of the second PV power source.

5 . The system of claim 1 , wherein the controller circuitry is configured to control the converter output voltage based on a first power of the first converter circuitry, a second power of the first PV power source, and a third power of the second PV power source.

6 . The system of claim 1 , wherein the controller circuitry is configured to control the converter output voltage based on a first current of the first converter circuitry and the first PV power source, and a second current of the second PV power source.

7 . The system of claim 1 , wherein the first converter circuitry includes direct current (DC) to DC converter circuitry.

8 . The system of claim 1 , wherein the first converter circuitry includes buck converter circuitry and boost converter circuitry.

9 . The system of claim 1 , wherein the system power device includes second converter circuitry.

10 . The system of claim 9 , wherein the second converter circuitry includes direct current (DC) to alternating current (AC) converter circuitry.

11 . The system of claim 1 , wherein the system further includes third converter circuitry with an output terminal connected to the second PV power source and configured to output a second converter output voltage, wherein the second PV output voltage together with the second converter output voltage is a second combined output voltage.

12 . The system of claim 11 , wherein the system power device is connected to the third converter circuitry and a third power source and configured to receive the second combined output voltage.

13 . The system of claim 12 , wherein the controller circuitry is configured to control the converter output voltage based on the second combined output voltage.

14 . The system of claim 12 , wherein the controller circuitry is configured to control the converter output voltage based on the combined output voltage and the second combined output voltage.

15 . An apparatus comprising:

a pair of input terminals,

a pair of output terminals including a first output terminal and a second output terminal;

converter circuitry configured to convert an input voltage between the pair of input terminals to a converter output voltage across the pair of output terminals;

an input power source connected to the pair of input terminals;

wherein the first output terminal of the pair of output terminals is configured to connect to a first photovoltaic (PV) power source, wherein the first PV power is separate from the input power source;

wherein the second output terminal of the pair of output terminals is configured to connect to a system power device separate from the converter circuitry; and

controller circuitry configured to control the converter output voltage based on a PV output voltage generated by a second PV power source.

16 . The apparatus of claim 15 , wherein the controller circuitry is configured to control the converter output voltage based on a maximum power of the second PV power source.

17 . The apparatus of claim 15 , wherein the controller circuitry is configured to control the converter output voltage based on a maximum power of the first PV power source.

18 . The apparatus of claim 15 , wherein the controller circuitry is configured to control the converter output voltage based on a first maximum power of the first PV power source and a second maximum power of the second PV power source.

19 . The apparatus of claim 15 , wherein the controller circuitry is configured to control the converter output voltage based on a first power of the converter circuitry, a second power of the first PV power source, and a third power of the second PV power source.

20 . The apparatus of claim 15 , wherein the controller circuitry is configured to control the converter output voltage based on a first current of the converter circuitry and the first PV power source, and a second current of the second PV power source.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2024
From: YOSCOVICH, ILAN
To: SOLAREDGE TECHNOLOGIES LTD.
Reel/Frame 067465/0681 →
Priority Claims (1)
GB 1201499 · Jan 30, 2012 · national
Continuity (4)
Continuation 16787730 · Feb 11, 2020
Continuation 15720919 · Sep 29, 2017
Continuation 13754059 · Jan 30, 2013
Related Publication 20240222978A1 · Jul 4, 2024
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