# US 2019/0173424 A1 · Testing of a Photovoltaic Panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173424 A1 - Document ID: US20190173424A1 - Status: Published application - Kind: A1 - Application number: 16/269,403 - Filed: 2019-02-06 - Published: 2019-06-06 - Earliest claimed: 2007-12-05 - Assignees: Solaredge Technologies Ltd. - Applicants: Solaredge Technologies Ltd - Inventors: Meir Adest; Guy Sella; Lior Handelsman; Yoav Galin; Amir Fishelov; Meir Gazit; Tzachi Glovinsky; Yaron Binder - Web page: https://patentgrep.com/patent/US20190173424A1 ## CPC - H02S 50/10: Testing of PV devices, e.g. of PV modules or single PV cells (testing of semiconductor devices during manufacturing {H10P74/00}) - G01R 27/02: Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00) - G01R 31/40: Testing power supplies (testing photovoltaic devices H02S50/10) - H02M 3/10: using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence) - H02M 3/1582: {Buck-boost converters (H02M3/1584 takes precedence)} - H10F 77/955: {for photovoltaic devices} - H02M 7/48: using discharge tubes with control electrode or semiconductor devices with control electrode - Y02E 10/50: Photovoltaic [PV] energy - Y02E 10/56: Power conversion systems, e.g. maximum power point trackers - H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00) - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A method for testing a photovoltaic panel connected to an electronic module. The electronic module includes an input attached to the photovoltaic panel and a power output. The method activates a bypass to the electronic module. The bypass provides a low impedance path between the input and the output of the electronic module. A current is injected into the electronic module thereby compensating for the presence of the electronic module during the testing. The current may be previously determined by measuring a circuit parameter of the electronic module. The circuit parameter may be impedance, inductance, resistance or capacitance. ## Claims ### Claim 1 (canceled) ### Claim 2 A system comprising: a photovoltaic panel; a buck-boost converter, wherein an output of the photovoltaic panel is electrically connected to an input of the buck-boost converter; and a bypass link connected between the output of the photovoltaic panel and an output of the buck-boost converter, the bypass link comprising a first switch, wherein, when the first switch is activated, the bypass link provides a low impedance path between the output of the photovoltaic panel and the output of the buck-boost converter. ### Claim 3 (depends on 2) The system of claim 2 wherein the first switch is a solid state switch. ### Claim 4 (depends on 2) The system of claim 2 wherein the buck-boost converter is configured to convert power received from the output of the photovoltaic panel. ### Claim 5 (depends on 2) The system of claim 2 wherein the first switch is configured to be activated based on a malfunction in the buck-boost converter. ### Claim 6 (depends on 2) The system of claim 2 wherein the bypass link further comprises one or more switches serially connected to the first switch. ### Claim 7 (depends on 2) The system of claim 2 wherein the first switch is activated by applying an electromagnetic signal. ### Claim 8 (depends on 2) The system of claim 2 wherein the bypass link is activated in response to a communication signal. ### Claim 9 An apparatus comprising: a buck-boost converter configured to perform power conversion from an input of the buck-boost converter to an output of the buck-boost converter; and a bypass link electrically coupled between the input of the buck-boost converter and the output of the buck-boost converter, the bypass link comprising a first switch, wherein the first switch comprises an activated state and a deactivated state, wherein when the first switch is activated, the bypass link provides a low impedance path between an output of a photovoltaic panel and the output of the buck-boost converter. ### Claim 10 (depends on 9) The apparatus of claim 9 wherein the first switch is activated responsive to an electronic malfunction in the buck-boost converter. ### Claim 11 (depends on 9) The apparatus of claim 9 wherein the buck-boost converter is connected to the photovoltaic panel. ### Claim 12 (depends on 9) The apparatus of claim 9 wherein the first switch is a solid state switch. ### Claim 13 (depends on 9) The apparatus of claim 9 wherein the bypass link further comprises one or more switches serially connected to the first switch. ### Claim 14 (depends on 9) The apparatus of claim 9 wherein the bypass link is activated by applying a signal. ### Claim 15 (depends on 9) The apparatus of claim 9 wherein the bypass link is activated in response to a communication signal. ### Claim 16 A method comprising: harvesting power from a photovoltaic panel; converting the harvested power from an input of a buck-boost converter to an output of the buck-boost converter; and bypassing the buck-boost converter by activating a switch of a bypass link, wherein the bypass link is electrically coupled between the input of the buck-boost converter and the output of the buck-boost converter, and wherein the activating the switch of the bypass link provides a low impedance path between the input of the buck-boost converter and the output of the buck-boost converter. ### Claim 17 (depends on 16) The method of claim 16 wherein the switch is activated responsive to an electronic malfunction of the buck-boost converter. ### Claim 18 (depends on 17) The method of claim 17 further comprising deactivating the switch. ### Claim 19 (depends on 18) The method according to claim 18 wherein the deactivating comprises communicating with the buck-boost converter. ### Claim 20 (depends on 18) The method of claim 18 wherein the deactivating comprises opening the switch. ### Claim 21 (depends on 16) The method of claim 16 wherein the switch is activated responsive to a communication signal.