This Design Solution article shows how regenerative current transformation coupled with dc-dc conversion provides a 0.1- to 3-V adjustable supply for wide range and high overall efficiency.

Use source transformation to find the voltage Vo in the circuit in the figure shown. We begin by removing the 125 Ω and 10 Ω resistors, because the 125 Ω resistor is connected across the 250 V voltage ...

It has long been known that the simple combination of a depletion-mode MOSFET (and before these were available, a JFET) and a resistor made a simple, serviceable current source such as that seen on ...

Author Mazi Hosseini describes a simple, low-cost, voltage-controlled current source using two op amps that provides a good range of current and maximum load. One challenge in circuit design is ...