| 摘要 |
To provide a circuit arrangement, particularly for a television, multimedia, radio or video recording device, for transition from a range of low voltage (Ui) to a range of higher voltage (Uo) having a simple and low-cost structure and operating as an interface between the range of low voltage (Ui) and a range of higher voltage (Uo) in a stable and reliable way, also when the voltage difference between the range of low voltage (Ui) and the range of higher voltage (Uo) is large, it is proposed that at least one adapter circuit (10) is provided, which amplifies a particularly analog input signal of a low current (Ii) by an amplification factor (n) into a particularly analog output signal of a higher current (Io), whose input (12) is assignable to the range of low voltage (Ui), whose output (18) is assignable to the range of higher voltage (Uo), and comprises at least one npn transistor current mirror (14) and at least one pnp current mirror (16) arranged in series with the npn transistor current mirror (14) and connected to at least one high voltage source (30).
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