Push pull AC inverter circuit - has alternating transistors with base drive current ratio set by capacitive divider

A push pull a.c. inverter circuit has a pair of alternatively conducting transistors (1, 2) coupled to a d.c. supply (3) via a smoothing capacitor (3a). Both transistors connect with the load (4) that connects with bridge capacitors (5, 6). A power transformer (8) has a primary winding (10), core (9...

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Bibliographische Detailangaben
Hauptverfasser:	WARMBIER, DIETER., 6380 BAD HOMBURG, DE, KEGLER, HEINRICH, (GRAD.), 6370 OBERURSEL, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A push pull a.c. inverter circuit has a pair of alternatively conducting transistors (1, 2) coupled to a d.c. supply (3) via a smoothing capacitor (3a). Both transistors connect with the load (4) that connects with bridge capacitors (5, 6). A power transformer (8) has a primary winding (10), core (9) and secondary windings (11, 12). The secondaries are coupled between the base and emitter of the transistors (1, 2). The capacitive elements (5, 6) act as a voltage divider and allow the base drive current ratio to be set. ADVANTAGE - Allows switching ratios of transistor stages to be improved.