Current　sense　resistor　(CSR)　is　widely　used　due　to　cost　and　integration　considerations　in　industrial　applications.　However,　when　CSRs　are　used　to　sense　transient　currents　caused　by　power　device　switching,　especially　fast-switching　silicon　carbide　(SiC)　metal-oxide-semiconductor　field-effect　transistors　(mosfets)　with　high　di/dt,　even　a　tiny　parasitic　inductance　in　CSRs　bring　a　significant　impact　on　its　sensing　performance.　This　article　proposes　a　low-cost　well-performance　and　easy-to-design　current　sensing　circuit　that　uses　the　CSRs　and　an　LR　compensation　network　(LRCN)　to　compensate　for　the　effect　of　parasitic　inductance　on　transient　current　sensing.　In　order　to　support　the　parameter　selection　of　the　LR　network,　the　effects　of　parameters　such　as　parasitic　capacitance,　parasitic　inductance,　and　loads　on　the　performance　of　the　proposed　current　sensing　circuit　are　analyzed　in　detail.　Meanwhile,　a　parasitic　inductance　measurement　method　that　only　needs　passive　probes　is　proposed　to　measure　and　calculate　the　parasitic　inductance　of　CSRs.　This　circuit　can　not　only　sense　the　transient　current　on　the　printed　circuit　board　level　but　also　observe　the　transient　current　on　the　oscilloscope　through　a　coaxial　cable　connection.　Finally,　experimental　studies　under　an　inductive　load　double　pulse　test　setup　with　SiC　mosfets　are　carried　out　to　verify　the　validity　and　feasibility　of　the　proposed　transient　current　sensing　circuit.　Only　a　high　self-resonant　frequency　inductor　and　a　surface　mounted　device　resistor　are　needed　to　form　the　LR　network　to　fully　compensate　the　effect　of　parasitic　inductance　on　CSRs.　©　1986-2012　IEEE.