AC and DC input power supply
First Claim
1. An AC and DC input power supply comprising:
- an AC power supply circuit, and further comprisingan AC input for receiving a range of AC input voltages;
a rectifier circuit connected to the AC input;
an isolation output transformer having first and second primary winding terminals, and a low voltage winding section for connecting to a DC voltage input that is lower than the range of the DC bulk voltage that is rectified from the range of AC input voltage, wherein said rectifier circuit is connected to the first primary winding terminal of said isolation output transformer;
a transistor connected to the second primary winding terminal of the isolation output transformer; and
a DC power supply circuit, and further comprisingsaid DC input that is selectably connectable between the first primary winding terminal when the voltage input to the DC input connector is a nominal DC voltage that is within the range of the DC bulk voltage and the low voltage winding section when the voltage input to the DC input is lower than the range of the DC bulk voltage.
1 Assignment
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Accused Products
Abstract
An AC and DC input power supply includes an AC power supply circuit and an AC input for receiving a range of AC input voltages. A rectifier circuit is connected to the AC input. An isolation output transformer has first and second primary winding terminals and a low voltage winding section for connecting to a DC voltage input that is lower than the range of the DC voltage that is rectified from the range of AC input voltages. The rectifier circuit is connected to the first primary winding terminal of the isolation output transformer. A transistor is connected to the second primary winding terminal of the isolation output transformer. The DC power supply circuit includes a DC input that is selectably connectable between the first primary winding terminal when the voltage input to the DC input connector is a nominal DC voltage that is within the range of the DC bulk voltage and the low voltage winding section when the voltage input to the DC input is lower than the range of the DC bulk voltage.
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Citations
30 Claims
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1. An AC and DC input power supply comprising:
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an AC power supply circuit, and further comprising an AC input for receiving a range of AC input voltages; a rectifier circuit connected to the AC input; an isolation output transformer having first and second primary winding terminals, and a low voltage winding section for connecting to a DC voltage input that is lower than the range of the DC bulk voltage that is rectified from the range of AC input voltage, wherein said rectifier circuit is connected to the first primary winding terminal of said isolation output transformer; a transistor connected to the second primary winding terminal of the isolation output transformer; and a DC power supply circuit, and further comprising said DC input that is selectably connectable between the first primary winding terminal when the voltage input to the DC input connector is a nominal DC voltage that is within the range of the DC bulk voltage and the low voltage winding section when the voltage input to the DC input is lower than the range of the DC bulk voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A universal AC and DC input power supply comprising:
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an AC power supply circuit and further comprising an AC input for receiving a range of AC input voltages; a rectifier circuit connected to the AC input; an isolation output transformer having first and second primary winding terminals and a low voltage winding section having first and second low voltage winding terminals, wherein said first low voltage winding terminal is connected to said second primary winding terminal and said rectifier circuit is connected to the first primary winding terminal of said isolation output transformer; a transistor connected to the second primary winding terminal of the isolation output transformer; and a DC power supply circuit and further comprising a DC input through which a DC voltage is introduced that is lower than the range of the DC bulk voltage; and a diode having one end connected to the DC input and the other end connected to the second low voltage winding terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A universal AC and DC input power supply comprising:
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an AC power supply circuit and further comprising an AC input for receiving a range of AC input voltages; a rectifier circuit connected to the AC input; an isolation output transformer having first and second primary winding terminals, wherein said rectifier circuit is connected to the first primary winding terminal of said isolation output transformer; a transistor connected to the second primary winding terminal of the isolation output transformer; and a DC power supply circuit and further comprising a DC input through which a DC voltage input is input that is lower than the range of any DC bulk voltage that is rectified from the range of AC input voltages; and a diode having one end connected to the DC input and the other end connected to the second low voltage winding terminal. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification