Suppose that we are designing a cardiac pacemaker circuit The circuit is required to deliver pulses of 1-ms duration to the heart, which can be modeled as a 500- Ω resistance The peak amplitude of the pulses is required to be 5 V. However, the battery delivers only 2.5 V. Therefore, we decide to charge two equal- value capacitors an parallel from the 2.5-V battery and then switch the capacitors in series with the heart during the 1-ms pulse. What is the minimum value of the capacitances required so the output pulse amplitude remains between 4.9 V and 5.0 V throughout its 1-ms duration? If the pulses occur once every second, what is the average current drain from the battery). Use approximate calculations, assuming constant current during the output pulse. Find the ampere-hour rating of the battery so it lasts for five years.
Suppose that we are designing a cardiac pacemaker circuit The circuit is required to deliver pulses of 1-ms duration to the heart, which can be modeled as a 500- Ω resistance The peak amplitude of the pulses is required to be 5 V. However, the battery delivers only 2.5 V. Therefore, we decide to charge two equal- value capacitors an parallel from the 2.5-V battery and then switch the capacitors in series with the heart during the 1-ms pulse. What is the minimum value of the capacitances required so the output pulse amplitude remains between 4.9 V and 5.0 V throughout its 1-ms duration? If the pulses occur once every second, what is the average current drain from the battery). Use approximate calculations, assuming constant current during the output pulse. Find the ampere-hour rating of the battery so it lasts for five years.
Solution Summary: The author explains the value of minimum capacitance for the given output voltage change. The average current drawn from battery is I_avg=9.9mA and amper
Suppose that we are designing a cardiac pacemaker circuit The circuit is required to deliver pulses of 1-ms duration to the heart, which can be modeled as a 500-
Ω
resistance The peak amplitude of the pulses is required to be 5 V. However, the battery delivers only 2.5 V. Therefore, we decide to charge two equal- value capacitors an parallel from the 2.5-V battery and then switch the capacitors in series with the heart during the 1-ms pulse. What is the minimum value of the capacitances required so the output pulse amplitude remains between 4.9 V and 5.0 V throughout its 1-ms duration? If the pulses occur once every second, what is the average current drain from the battery). Use approximate calculations, assuming constant current during the output pulse. Find the ampere-hour rating of the battery so it lasts for five years.
Make a clamper circuit using 500 µF capacitor, silicon diode, and a 100 KΩ resistor connected to a 10 Vpeak sine wave. Draw the output waveform and indicate the amplitude and the time values supported by your solutions. Do these for both positive and negative clamper circuit. Show your circuits first before your solutions and waveforms.
The magnitude of the voltage applied to the electrodes of a welding machine can be adjusted in the circuit below. In the range of minimum and maximum value that variable value resistor can take What is the time interval that the capacitor will charge from 0 to 8 V?
An alternating voltage is applied to a series circuit consisting of a resistor and iron-cored inductor and a capacitor. The current in the circuit is 0.5 A and the voltages measured are 30 V across the resistor, 48 V across the inductor, 60 V across the resistor and inductor and 90 V across the capacitor. Find (a) the combined copper and iron losses in the inductor (b) the applied voltage.
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