BlackMelon
- Aug 7, 2012
- 188
- Joined
- Aug 7, 2012
- Messages
- 188
Hi there,
I've made a DC to DC step up (Boost) converter and I want to know its response to obtain its transfer function. The input is percentage of duty cycle (which I set it to be 60%) and the output is the output voltage. My voltage source is 12V dc battery and my load is 9.72Kohm resistor.
After I've connected my oscilloscope's probe and ground to the load, the output voltage didn't boost up. It stayed at 12V. I've changed a measurement tool to be a digital multimeter, everything worked correctly (but I couldn't obtain the graph response which such a tool).
Could you tell me why it happens this way?
PS: My oscilloscope has 10Mohms input resistance at 10X attenuation.
Thanks
BlackMelon
I've made a DC to DC step up (Boost) converter and I want to know its response to obtain its transfer function. The input is percentage of duty cycle (which I set it to be 60%) and the output is the output voltage. My voltage source is 12V dc battery and my load is 9.72Kohm resistor.
After I've connected my oscilloscope's probe and ground to the load, the output voltage didn't boost up. It stayed at 12V. I've changed a measurement tool to be a digital multimeter, everything worked correctly (but I couldn't obtain the graph response which such a tool).
Could you tell me why it happens this way?
PS: My oscilloscope has 10Mohms input resistance at 10X attenuation.
Thanks
BlackMelon
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