Stabilized electric power apparatus for generating direct and alternating current simultaneously in one transformer

Assignee: Toshiba Corp

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Filing: 1987-03-31

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Granted: —

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Expires: 2007-03-31

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Abstract

Abstract The present invention comprises a switching circuit which converts direct current electric power into a pulse, and an insulated transformer (T s ) which includes a primary coil (Np) for loading a generated pulse, and coils (N s1 , N om , N s2 ) for direct and alternating current outputs which provided on the secondary coil side of the transformer, an impedance (Z) circuit for controlling current and connected with a said secondary coil (N s2 ) for alternating the coil output, a control circuit which controls a switching circuit (Q1) so that the output voltage of the coil(s) for the direct current output is constant, a fluorescent lamp (Re) connected with the coil for alternating the current output and it has a simple circuit structure with a small number of parts and can reduce manufacturing costs because it can obtain the alternating current output without secondary switching.

Inventors

👤 Sadao C/O Patent Division Okochi

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-08 16:01

CPC Classifications

H; H02; H02M; H02M1/00; H02M1/42; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/2821; H05B41/2824; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33538; H02M3/33546; H02M3/33561; H02M3/337; H02M3/3376; H02M3/3378; Y; Y10; Y10S; Y10S315/00; Y10S315/01; Y10S315/07

Claims Analysis

Total Claims: 4

Claim 1

Independent Claim 109 words

(1) A stabilized electric power apparatus, comprising; a switching circuit for converting the direct current power into pulse by switching, an insular trans (T S ) provided with a primary coil (Np) for developing the generated pulse, coils (N s1 , N sm , N s2 ) for direct and alternating current outputs provided with a secondary coil side of said insular trans, an impedance (Z) for controlling the current connected with said coil for alternating current output, a control circuit for controlling said switching circuit so that the output voltage of said direct current output to be constant, a fluorescent lamp (Rℓ) connected with said alternating current output.

Claim 2

Dependent Claim 35 words

(2) The stabilized electric power apparatus according to claim 1, wherein sand impedance for controlling the current is a choke coil (L 2 ) connected with said coil for the alternating current output in series.

Claim 3

Dependent Claim 48 words

(3) The stabilized electric power apparatus according to claim 1, wherein said impedance for controlling includes a primary and a secondary choke coils connected with said coil for alternating output in saries and a condenser (C 3 ) connected with said coil for alternating current output in parallel.

Claim 4

Dependent Claim 103 words

(4) A stabilised electrical power apparatus comprising a switching circuit (Ql) for converting a direct current input to a pulsed output a transformer having a primary coil (N ) for receiving the pulsed output and secondary coils (N s1 , N s2 ) for providing direct and alternating current outputs an impedance (Z) for controlling the current output from the alternating current secondary coil (N s2 ) and a control circuit (Ra, Rb, Al, R, PC, PwM, OSC, DR) for controlling the switching circuit so that the output voltage of the direct current secondary coil (N s1 ) is controlled to be constant.

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