Abstract: Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The utility may include a controllable switch that is operative to decouple circuitry of the power device from a power source under certain no-load conditions. In one embodiment, the utility provides a switch control module that is operative to sense when an electronic device is coupled to the power device, and in response, to control the switch to couple the power device to the power source. The switch control module may also be operative to detect a condition when the electronic device is no longer drawing power from the power device, and in response, to control the switch to decouple the power device from the power source.

Abstract: Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The utility may include a controllable switch that is operative to decouple circuitry of the power device from a power source under certain no-load conditions. In one embodiment, the utility provides a switch control module that is operative to sense when an electronic device is coupled to the power device, and in response, to control the switch to couple the power device to the power source. The switch control module may also be operative to detect a condition when the electronic device is no longer drawing power from the power device, and in response, to control the switch to decouple the power device from the power source.

Abstract: The present invention relates to a transformer with a coil body accommodating at least one primary coil and one secondary coil. It is the object of the present invention to provide a transformer which, using the smallest possible amount of high-grade insulation material, ensures good insulation while remaining compact and easily assembled. The object is achieved by a transformer of the above type which is characterized in that the coil body comprises at least one primary part, accommodating the primary coil, and one secondary part, accommodating the secondary coil, and wherein at least one section of the primary part can be covered by at least one section of the secondary part. This section of the secondary part performs the function of the fire-protection housing for the primary part of the transformer.

Abstract: The present invention relates to a transformer with a coil body accommodating at least one primary coil and one secondary coil. It is the object of the present invention to provide a transformer which, using the smallest possible amount of high-grade insulation material, ensures good insulation while remaining compact and easily assembled. The object is achieved by a transformer of the above type which is characterized in that the coil body comprises at least one primary part, accommodating the primary coil, and one secondary part, accommodating the secondary coil, and wherein at least one section of the primary part can be covered by at least one section of the secondary part. This section of the secondary part performs the function of the fire-protection housing for the primary part of the transformer.