MATNINGSBRYGGA
A bridge circuit provided with an isolation transformer having four primary windings which are connected such that the voice currents do and the supply currents do not generate a resulting flux in the core of the transformer and which comprises two transistor circuits. These circuits on the one hand...
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| Format: | Patent |
| Sprache: | swe |
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| Zusammenfassung: | A bridge circuit provided with an isolation transformer having four primary windings which are connected such that the voice currents do and the supply currents do not generate a resulting flux in the core of the transformer and which comprises two transistor circuits. These circuits on the one hand prevent the flow of voice currents via a supply source connected to the bridge and on the other hand balance the bridge circuit so that the influence of longitudinal noise signals which are produced in a transmission line connected to the bridge circuit are suppressed. |
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