| 摘要 |
PURPOSE: A test circuit of a dc-dc converter is provided to test the functionality of a DC-DC converter without an inductor or the flow of the large amount of current. CONSTITUTION: Current sources (IVIN, IVID) are respectively connected to power supply voltages (Vs1, Vs2). Current sources (IVO, IVIO) are respectively connected to power supply voltages (Vs4, Vs3). An output capacitor (340), the resistor of the output capacitor (370) and a capacitor (310) transformed from an inductor are connected to the power supply voltage. The switching states of each current source are different. The switching states of a current source (IVIN) are variable. A current source (IVID) and a current source (IVIO) are output dependent current source and the flow direction of current is varied from Vs3 to Vs2.
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