AC to DC power converter with regulated bi-polar outputs
First Claim
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1. An AC to DC power converter, comprising:
- an AC/DC converter section operable to convert an AC input into a plurality of unregulated internal DC outputs; and
a pair of positive and negative switching DC/DC converter sections connected to said AC/DC converter section and receiving a pair of positive and negative unregulated internal DC outputs therefrom being of a first voltage level and generating a pair of dual positive and negative regulated external DC outputs being of a second voltage level different from said first voltage level,wherein each of said positive and negative switching DC/DC converter sections has a current limiting arrangement which includes;
means connected between an input and an output of said switching DC/DC converter section for receiving a flow of current and sensing the voltage between the converter section input and output;
means coupled to ground voltage and connected between said voltage sensing means and the converter output for establishing a reference threshold voltage;
a control device operable for shutting down said switching DC/DC converter; and
a comparator connected to said control device and coupled to said established means and said sensing means, said comparator being operable for comparing the sensed voltage and reference threshold voltage and activating said control device to shut down said switching DC/DC converter when said sensed voltage exceeds said reference threshold voltage.
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Abstract
A AC to DC power converter unit includes an AC/DC converter section operable to convert an AC input into a plurality of unregulated internal DC outputs and a pair of positive and negative switching DC/DC converter sections connected to said AC/DC converter section and receiving a pair of positive and negative unregulated internal DC outputs therefrom being of a first voltage level and generating a pair of dual positive and negative regulated external DC outputs being of a second voltage level different from said first voltage level.
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Citations
1 Claim
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1. An AC to DC power converter, comprising:
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an AC/DC converter section operable to convert an AC input into a plurality of unregulated internal DC outputs; and a pair of positive and negative switching DC/DC converter sections connected to said AC/DC converter section and receiving a pair of positive and negative unregulated internal DC outputs therefrom being of a first voltage level and generating a pair of dual positive and negative regulated external DC outputs being of a second voltage level different from said first voltage level, wherein each of said positive and negative switching DC/DC converter sections has a current limiting arrangement which includes; means connected between an input and an output of said switching DC/DC converter section for receiving a flow of current and sensing the voltage between the converter section input and output; means coupled to ground voltage and connected between said voltage sensing means and the converter output for establishing a reference threshold voltage; a control device operable for shutting down said switching DC/DC converter; and a comparator connected to said control device and coupled to said established means and said sensing means, said comparator being operable for comparing the sensed voltage and reference threshold voltage and activating said control device to shut down said switching DC/DC converter when said sensed voltage exceeds said reference threshold voltage.
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Specification
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Current AssigneeGeorge A. Banura
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Original AssigneeGeorge A. Banura
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InventorsBanura, George A.
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Primary Examiner(s)BEHA JR, WILLIAM
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Application NumberUS07/733,488Time in Patent Office813 DaysField of Search363/65, 363/67, 363/81, 363/89, 363/56, 363/63, 323/266, 323/267, 307/11, 307/24, 307/82US Class Current323/357CPC Class CodesH02M 3/158 including plural semiconduc...
