FAQ: What are Constant Voltage (CV) and Constant Current (CC) in a power supply?

Both refer to the regulation mode of the power supply. Normally a DC power supply regulates the voltage to the user’s set point. But the power supply can also regulate the current in the Constant Current mode. For discussions about these two modes, see the Watt’s Up blog on CV and CC.

Applies to: All models

Select Home to return to the table of contents for more FAQs. Visit our Power Products Forum for additional topics and discussions. Read technical postings on our Power Blog – Watt’s Up?

6030A, 6031A, 6032A, 6033A, 6035A, 6038A, 6060B, 6063B, 6621A, 6622A, 6623A, 6624A, 6625A, 6626A, 6627A, 6628A, 6629A, 6641A, 6642A, 6643A, 6644A, 6645A, 6651A, 6652A, 6653A, 6654A, 6655A, 6671A, 6672A, 6673A, 6674A, 6675A, 6680A, 6681A, 6682A, 6683A, 6684A, 6690A, 6691A, 6692A, E4356A, 6611C, 6612C, 6613C, 6614C, 6631B, 6632B, 6633B, 6634B, 66309B, 66311B, 66312A, 66319B, 66319D, 66321B, 66321D, 66332A, 66000A, 66001A, 66002A, 66101A, 66102A, 66103A, 66104A, 66105A, 66106A, 6811B, 6812B, 6813B, AC6801A, AC6802A, AC6803A, AC6804A, E4360A, E4361A, E4362A, E4366A, E4367A, E4368A, E3620A, E3630A, E3631A, E3632A, E3633A, E3634A, E3640A, E3641A, E3642A, E3643A, E3644A, E3645A, E3646A, E3647A, E3648A, E3649A, E36102A, E36103A, E36104A, E36105A, E36106A, N3300A, N3301A, N3302A, N3303A, N3304A, N3305A, N3306A, N3307A, N5740A, N5741A, N5742A, N5743A, N5744A, N5745A, N5746A, N5747A, N5748A, N5749A, N5750A, N5751A, N5752A, N5761A, N5762A, N5763A, N5764A, N5765A, N5766A, N5767A, N5768A, N5769A, N5770A, N5771A, N5772A, N6700B, N6701A, N6702A, N6705A, N6705B, N6710B, N6711A, N6712A, N6715A, N6715B, N6731B, N6732B, N6733B, N6734B, N6735B, N6736B, N6741B, N6742B, N6743B, N6744B, N6745B, N6746B, N6773A, N6774A, N6775A, N6776A, N6777A, N6751A, N6752A, N6753A, N6754A, N6755A, N6756A, N6761A, N6762A, N6763A, N6764A, N6765A, N6766A, N6781A, N6782A, N6785A, N6786A, N6783A-MFG, N6783A-BDA, N6784A, N6950A, N6951A, N6952A, N6953A, N6954A, N6970A, N6971A, N6972A, N6973A, N6974A,N6976A, N6977A, N7950A, N7951A, N7952A, N7953A, N7954A, N7970A, N7971A, N7972A, N7973A, N7974A, N7976A, N7977A, N8731A, N8732A, N8733A, N8734A, N8735A, N8736A, N8737A, N8738A, N8739A, N8740A, N8741A, N8742A, N8754A, N8755A, N8756A, N8757A, N8758A, N8759A, N8760A, N8761A, N8762A, N8920A, N8921A, N8923A, N8924A, N8925A, N8926A, N8928A, N8929A, N8930A, N8931A, N8932A, N8934A, N8935A, N8937A, N8937APV, N8940A, N8941A, N8943A, N8944A, N8945A, N8946A, N8948A, N8949A, N8950A, N8951A, N8952A, N8954A, N8955A, N8957A, N8957APV, PA2201A, U8001A, U8002A, U8031A, U8032A