I am working as Design verification Test Engineer......i found it difficult measuring sleep current/transmitt current on a Key FOB which is using PIC16F636 microprossesor......everytime i measure i get 4uA as sleep current and approximate 2.3mA as transmission current.
How i measure is..i select a resistance and put in series with a ground and measure voltage drop across the resistance divide with the resistance?COULD ANYONE tell me where i need to pay intention or if there could be any method....which is much easier to measure sleep/transmission current?i have attached the waveform as shown on screen.Please help me ......i am ready to give all details regarding this problem.Thank you all good friends
How i measure is..i select a resistance and put in series with a ground and measure voltage drop across the resistance divide with the resistance?COULD ANYONE tell me where i need to pay intention or if there could be any method....which is much easier to measure sleep/transmission current?i have attached the waveform as shown on screen.Please help me ......i am ready to give all details regarding this problem.Thank you all good friends