Power supply unit having a voltage converter
First Claim
1. An electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device, wherein said power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part with a High Voltage, this control circuit receiving from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“
- Power-down”
mode) when said first control signal is set to OFF so that the converter is not supplied with electrical energy anymore, said power management unit being arranged such that, in said very low power mode, the power management unit can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying electrical energy again to said primary and secondary parts of the converter, whereinthe power management unit comprises a power supply controller managing several functions of this power management unit, a first voltage reducer or a first output of a voltage reducer unit providing an Intermediate Voltage when receiving an Input Voltage and a second voltage reducer, following said first voltage reducer, or a second output of said voltage reducer unit providing a Low Voltage for supplying said power supply controller.
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Accused Products
Abstract
The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“Power-down” mode) when said first control signal is set to OFF so that the converter is not supplied anymore. The power management unit is arranged such that, in said very low power mode, it can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying again said primary and secondary parts of the converter.
30 Citations
30 Claims
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1. An electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device, wherein said power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part with a High Voltage, this control circuit receiving from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“
- Power-down”
mode) when said first control signal is set to OFF so that the converter is not supplied with electrical energy anymore, said power management unit being arranged such that, in said very low power mode, the power management unit can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying electrical energy again to said primary and secondary parts of the converter, whereinthe power management unit comprises a power supply controller managing several functions of this power management unit, a first voltage reducer or a first output of a voltage reducer unit providing an Intermediate Voltage when receiving an Input Voltage and a second voltage reducer, following said first voltage reducer, or a second output of said voltage reducer unit providing a Low Voltage for supplying said power supply controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- Power-down”
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22. An electrical installation or device equipped with a power supply unit comprising a voltage converter having a primary part and secondary part respectively defining a primary side and a secondary side of the electrical installation or device, wherein said power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part with a High Voltage, the control circuit receiving from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“
- Power-down”
mode) when said first control signal is set to OFF so that the converter is not supplied with electrical energy, said power management unit being arranged such that, in said very low power mode, the power management unit can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying electrical energy to said primary and secondary parts of the converter, wherein said power supply unit comprises an input circuit with a rectifier, said input circuit having at least a first capacitor on the AC side and at least a second capacitor on the DC side of the rectifier, said first capacitor having a maximum value selected such that no parallel resistor is needed within said input circuit. - View Dependent Claims (23, 24, 25)
- Power-down”
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26. An electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device, wherein said power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part, the control circuit receiving from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“
- Power-down”
mode) when said first control signal is set to OFF so that the converter is not supplied with electrical energy, said power management unit being arranged such that, in said very low power mode, said power management unit can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying electrical energy to said primary and secondary parts of the converter, wherein said power management unit can keep the current state of this electrical installation or device at least for a predetermined period of time when the input supply is cut OFF without any additional battery or big capacitor (supercap/goldcap). - View Dependent Claims (27, 28, 29, 30)
- Power-down”
Specification