US Patent No. 10,143,048

LED LIGHT WITH CONTROL CIRCUIT


Patent No. 10,143,048
Issue Date November 27, 2018
Title Led Light With Control Circuit
Inventorship Andreas Hierzer, Graz (AT)
Assignee H4X e.U., Graz (AT)

Claim of US Patent No. 10,143,048

1. A light comprising:a lighting means carrier;
at least one LED lighting means which is arranged on the lighting means carrier; and
a voltage converter circuit which is configured to supply the at least one LED lighting means with electrical current and whose output current is controlled, wherein the voltage converter circuit includes
a voltage converter that is connected in series with the at least one LED lighting means and the at least one LED lighting means is supplied with electrical voltage by the voltage converter, and
a control circuit having
a switch which is configured to output, depending on the mechanical operating position of the switch, an actuation signal for setting a setpoint output current of the voltage converter, wherein the switch includes a multiplicity of current-conducting branches that are connected in parallel and have resistors with different resistance values, and a contact maker, wherein the contact maker is configured to connect selectively in each case one of the multiplicity of parallel-connected current-conducting branches to an input contact of the switch, and
a detector circuit that is configured to determine a voltage drop across the resistors and to output, as a function of the determined voltage drop, an actuation signal for setting the setpoint output current of the voltage converter.