FIELD: industrial electronics; instrumentation engineering. SUBSTANCE: proposed voltage-to-current converter designed for shaping current signal in arbitrary-resistance load of saw-tooth voltage generator circuits has first negative-feedback operational amplifier using also positive feedback circuit set up of two resistors of which one is inserted between operational amplifier output and converter output, other resistor being connected to noninverting input of mentioned amplifier; novelty is introduction of second operational amplifier whose inverting input is connected to converter output and noninverting one, to negative feedback circuit of this amplifier and to resistor connected to noninverting input of first operational amplifier. EFFECT: enlarged current regulation range towards lower values. 1 dwg
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