Abstract: The present invention relates to an apparatus for maximizing the power of a multi module solar string power generation system, comprising an Injection Circuit (IC), connected to a DC bus and to a string of solar panels, wherein the IC is also connected to at least one separated solar panel of the string. The IC regulates the power production of the connected string and utilizes the excess power to the solar inverter. The IC comprises: (i) a first MPPT mechanism, for finding the MPP of the string; (ii) a second MPPT mechanism, for finding the MPP of the separated panel; (iii) a first DC/DC converter, for converting some of the power, from the separated panel, to regulating power for the connected string; and (iv) a second DC/DC converter, for converting and utilizing, the excess power from the separated panel, to the solar inverter using the DC bus.

Abstract: The present invention relates to an optimizer, for a solar string power generation system, comprising an Injection Circuit (IC), connected to at least one string, from an array of strings of solar panels, wherein the output of said IC is connected to the DC bus of the solar inverter. The IC comprises: (i) an MPPT mechanism, for finding the MPP of the connected string; (ii) a DC/DC converter, for converting part of the power of said connected string; wherein the DC/DC converter, converts only a part of the power of the string, that is connected to the IC, when the string is impaired, for compensating for the relative voltage difference between the voltage MPP, of the impaired string, and the MPP voltage of the DC bus of the solar inverter and the array of strings.

Abstract: The present invention relates to an optimizer, for a solar string power generation system, comprising an Injection Circuit (IC), connected to at least one string, from an array of strings of solar panels, wherein the output of said IC is connected to the DC bus of the solar inverter. The IC comprises: (i) an MPPT mechanism, for finding the MPP of the connected string; (ii) a DC/DC converter, for converting part of the power of said connected string; wherein the DC/DC converter, converts only a part of the power of the string, that is connected to the IC, when the string is impaired, for compensating for the relative voltage difference between the voltage MPP, of the impaired string, and the MPP voltage of the DC bus of the solar inverter and the array of strings.

Abstract: The present invention relates to an optimizer, for a solar string power generation system, comprising an Injection Circuit (IC), connected to at least one string, from an array of strings of solar panels, wherein the output of said IC is connected to the DC bus of the solar inverter. The IC comprises: (i) an MPPT mechanism, for finding the MPP of the connected string; (ii) a DC/DC converter, for converting part of the power of said connected string; wherein the DC/DC converter, converts only a part of the power of the string, that is connected to the IC, when the string is impaired, for compensating for the relative voltage difference between the voltage MPP, of the impaired string, and the MPP voltage of the DC bus of the solar inverter and the array of strings.

Abstract: The present invention relates to an apparatus for maximizing the power of a multi module solar string power generation system, comprising an Injection Circuit (IC), connected to a DC bus and to a string of solar panels, wherein the IC is also connected to at least one separated solar panel of the string. The IC regulates the power production of the connected string and utilizes the excess power to the solar inverter. The IC comprises: (i) a first MPPT mechanism, for finding the MPP of the string; (ii) a second MPPT mechanism, for finding the MPP of the separated panel; (iii) a first DC/DC converter, for converting some of the power, from the separated panel, to regulating power for the connected string; and (iv) a second DC/DC converter, for converting and utilizing, the excess power from the separated panel, to the solar inverter using the DC bus.

Abstract: An ultra-thin transformer (UTT) is disclosed. The UTT is comprised of an ultra-thin core (UTC), which comprises a base unit comprising a central core branch, at least one side branch, a plurality of dents forming a toroidic space in the base unit around the central core branch, and an open face. The UTC also comprises a cover unit adapted to match the open face of the base unit. The UTT also comprises a primary winding and a secondary winding. A method for production of thin helical winding is also disclosed. The method comprises obtaining a wire adapted to form a helical layer, winding the wire of certain transformer's layer between two flat plates, and removing the flat plates when the layer is finished.

Abstract: A miniature electrical power charger for an electrical device comprises a rectifier for converting non-isolated AC electrical grid with first voltage level to non-isolated DC voltage with second voltage level, a DC-DC voltage converter for converting the non-isolated DC voltage with second voltage level to non-isolated intermediate DC voltage of a third voltage level and a transformer unit for converting the non-isolated intermediate DC voltage of a third voltage level to an isolated low DC voltage of a fourth voltage level.