SWITCHED-MODE POWER SUPPLY
First Claim
1. A switched-mode power supply, comprising:
- a primary side,a secondary side,a transformer between the primary side and the secondary side,a detection circuit for detecting a coupling of an electrical device to the switched-mode power supply and a decoupling of the electrical device from the switched-mode power supply,a switch for controlling the supply of electric power to the switched-mode power supply,a control circuit for controlling the switch, the control circuit being configured to turn on the switch when the coupling of the electrical device has been detected, and to turn off the switch when the decoupling of the electrical device has been detected,a supply circuit for providing a supply voltage to the detection circuit and the control circuit,a rectifier having two input and two output terminals, the input terminals being coupled by interference suppression capacitors to the input terminals of the switched-mode power supply, anda charging capacitor coupled between the output terminals of the rectifier for storing an electric energy to operate the detection circuit and the control circuit.
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Accused Products
Abstract
The present invention relates to a switched-mode power supply that comprises a detection circuit for detecting a coupling of an electrical device to the switched-mode power supply and a decoupling of the electrical device from the switched-mode power supply, a switch for controlling the supply of electric power to the switched-mode power supply, a control circuit for controlling the switch, the control circuit being configured to turn on the switch when the coupling of the electrical device has been detected, and to turn off the switch when the decoupling of the electrical device has been detected, and a supply circuit for providing a supply voltage to the detection circuit and the control circuit.
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Citations
13 Claims
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1. A switched-mode power supply, comprising:
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a primary side, a secondary side, a transformer between the primary side and the secondary side, a detection circuit for detecting a coupling of an electrical device to the switched-mode power supply and a decoupling of the electrical device from the switched-mode power supply, a switch for controlling the supply of electric power to the switched-mode power supply, a control circuit for controlling the switch, the control circuit being configured to turn on the switch when the coupling of the electrical device has been detected, and to turn off the switch when the decoupling of the electrical device has been detected, a supply circuit for providing a supply voltage to the detection circuit and the control circuit, a rectifier having two input and two output terminals, the input terminals being coupled by interference suppression capacitors to the input terminals of the switched-mode power supply, and a charging capacitor coupled between the output terminals of the rectifier for storing an electric energy to operate the detection circuit and the control circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification