Multiple output power supply that configures itself to multiple loads
First Claim
1. A power supply comprising:
- a first stage that receives an AC supply voltage and that outputs a DC supply voltage; and
a second stage comprising;
a first DC-to-DC converter that receives the DC supply voltage and that is capable of outputting a first programmable DC voltage onto a first conductor;
a second DC-to-DC converter that receives the DC supply voltage and that is capable of outputting a second programmable DC voltage onto a second conductor; and
a DC-ID controller that is AC coupled to the first conductor, wherein the DC-ID controller receives first information from the first conductor and in response controls the first DC-to-DC converter such that the first programmable DC voltage has a first magnitude that is dependent upon the first information received from the first conductor, and wherein the DC-ID controller is AC coupled to the second conductor, wherein the DC-ID controller receives second information from the second conductor and in response controls the second DC-to-DC converter such that the second programmable DC voltage has a second magnitude that is dependent upon the second information received from the second conductor.
0 Assignments
0 Petitions
Accused Products
Abstract
A two stage multiple output power supply device is capable of outputting programmable DC voltages onto multiple outputs. The first stage receives an AC supply voltage and outputs a DC supply voltage. The second stage includes a DC-ID controller and multiple DC-to-DC converters, each DC-to-DC converter receiving the DC supply voltage and capable of outputting a programmable DC voltage onto a conductor of a power cord to power an electrical device. For each DC-to-DC converter, the DC-ID controller receives information in an AC signal on the conductor, the information indicating the voltage and current requirements and the polarity of an electrical device connected to the power cord for that DC-to-DC converter. In response to the information, the DC-ID controller controls the DC-to-DC converter to set a magnitude, a polarity and a current limit for the programmable DC voltage that will be output by the DC-to-DC converter.
-
Citations
24 Claims
-
1. A power supply comprising:
-
a first stage that receives an AC supply voltage and that outputs a DC supply voltage; and a second stage comprising; a first DC-to-DC converter that receives the DC supply voltage and that is capable of outputting a first programmable DC voltage onto a first conductor; a second DC-to-DC converter that receives the DC supply voltage and that is capable of outputting a second programmable DC voltage onto a second conductor; and a DC-ID controller that is AC coupled to the first conductor, wherein the DC-ID controller receives first information from the first conductor and in response controls the first DC-to-DC converter such that the first programmable DC voltage has a first magnitude that is dependent upon the first information received from the first conductor, and wherein the DC-ID controller is AC coupled to the second conductor, wherein the DC-ID controller receives second information from the second conductor and in response controls the second DC-to-DC converter such that the second programmable DC voltage has a second magnitude that is dependent upon the second information received from the second conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method comprising:
-
(a) receiving a first AC signal onto a first contact of a first DC power connector, the first DC power connector being a part of a power supply, the first DC power connector also having a second contact, wherein there is substantially no DC voltage between the first and second contacts during the receiving of (a), wherein the first AC signal carries first information; (b) the power supply using the first information to output a first programmable DC voltage onto the first DC power connector; (c) receiving a second AC signal onto a first contact of a second DC power connector, the second DC power connector being a part of the power supply, the second DC power connector also having a second contact, wherein there is substantially no DC voltage between the first and second contacts during the receiving of (c), wherein the second AC signal carries second information; and (d) the power supply using the second information to output a second programmable DC voltage onto the second DC power connector. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A power supply comprising:
-
a first DC power connector, the first DC power connector having a first contact and a second contact; a second DC power connector, the second DC power connector having a first contact and a second contact; and means for receiving a first AC signal onto the first DC power connector when there is substantially no DC voltage between the first and second contacts of the first DC power connector, the means also being for outputting a first DC voltage onto the first DC power connector, wherein a magnitude of the first DC voltage depends upon first information carried in the first AC signal, the means also being for receiving a second AC signal onto the second DC power connector when there is substantially no DC voltage between the first and second contacts of the second DC power connector, the means also being for outputting a second DC voltage onto the second DC power connector, wherein a magnitude of the second DC voltage depends upon second information carried in the second AC signal. - View Dependent Claims (22, 23, 24)
-
Specification