Abstract: The invention focuses on a voltage transformer (VT) that includes at least two transformer stages (VT I, VT II), each of them with an input connection and to each of which an input subvoltage UEI, UEII is attached and added together they form an input voltage UE, and each of them with an outlet connection where an output subvoltage UAI, UAII is attached to each outlet, the total forming an output voltage UA. In order to prove that a concentration of electrical power of several stages is possible with or without a transformer, as well as to improve the efficiency and lower the cost, it is planned to attach a positive output subvoltage UAI at the first outlet of the transformer stage (VT I) with reference to a ground potential (P) and to attach a negative output subvoltage UAII with reference to this ground potential (P) at the outlet of the second transformer stage (VT II), whereby the sum of the individual output subvoltages UAI, UAII is the output voltage UA.

Abstract: The invention focuses on a voltage transformer (VT) that includes at least two transformer stages (VT I, VT II), each of them with an input connection and to each of which an input subvoltage UEI, UEII is attached and added together they form an input voltage UE, and each of them with an outlet connection where an output subvoltage UAI, UAII is attached to each outlet, the total forming an output voltage UA. In order to prove that a concentration of electrical power of several stages is possible with or without a transformer, as well as to improve the efficiency and lower the cost, it is planned to attach a positive output subvoltage UAI at the first outlet of the transformer stage (VT I) with reference to a ground potential (P) and to attach a negative output subvoltage UAII with reference to this ground potential (P) at the outlet of the second transformer stage (VT II), whereby the sum of the individual output subvoltages UAI, UAII is the output voltage UA.

Abstract: The invention relates to a current-to-voltage converter comprising an input connected to a first inductance, a capacitor and a diode, an isolation transformer in connection with a first connection of a primary winding, a second connection is connected with a first output, a breaker circuit is connected over to a connecting point between the first inductance and the capacitor, a series circuit of a second inductance and a measuring element is connected over a connecting point between the capacitor and the diode. The isolation transformer further comprises a plurality of secondary windings on one core in order to form multiple outputs.

Abstract: A current-to-voltage converter (10), in particular for high input voltages, comprising a primary side (14), which comprises several serially connected partial systems (16, 18, 20), including respectively at least one transistor circuit breaker (T1, T2, T3) and at least one separate associate transformer primary winding (TP1, TP2, TP3), and a secondary side (22), over which the partial systems (16, 18, 20) are coupled into a common load output (24). In order to make available a current-to-voltage converter having an uncomplicated design and partial systems with improved balanced voltage, the invention herein provides that each of the serially connected partial systems (16, 18, 20) has a branch with an input inductance (L16.1, L18.1, L20.1) and at least one transistor circuit breaker (T1, T2, T3), that the inductances (L16.1, L18.1, L20.1) are applied electrically in series to input voltage U.sub.

Abstract: A switching power supply using SEPIC topology with an input and output circuit (12, 14). The input circuit (12) contains two inductance coils (D1.1) and (D1.2). To improve power supply and control properties, the second inductance coil (D1.2) is magnetically coupled to the first inductance coil (D1.1), in such a way that a value (IS), proportional to current (IS), measured in the second inductance coil (D1.2), can be supplied to a current regulator (KI) as an actual value. A computer unit (RG') contains an input (A) for a voltage difference (UF) from output voltage (UA) and reference voltage (USOLL), an input (B) for a sinusoidal input voltage (UE), and an additional input (C) for the peak value (UES) or a phased-shifted voltage (k.times.UES) of the input voltage as a direct voltage reading, whereby a signalD=A.times.B/C=UF.times.UE/k.times.UESis produced at output (52').

Abstract: A system is disclosed for maintaining the precise regulation of the output voltage or current of a push-pull inverter subject to large variations of input voltage as well as output voltage or current, without variable fluctuations which would produce asymmetrical direct currents in the primary of the push-pull inverter transformer. A regulation fluctuation signal is produced from the output voltage or current by comparing the actual nominal value with a desired standard value. The actual value is made constant by varying the switching times of periodically switched transistors, which alternately switch current in the two primary windings of the push-pull inverter transformer. The integrals of the voltage or current wave forms in each conduction period of the transistors are derived from the transistor signal amplitudes during two consecutive periods.