Page 141 - The Art and Science of Analog Circuit Design
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Who Wakes the Bugler?
Figure 10-3. Separate, In Time, the Charging of Capacitances,
Peaking Principle 1
1
C — C cable
Principle Number Two: Don't Waste Current Feeding a Resistor When a
Capacitor Needs to Be Charged In Figure 10-4 a helpful elf mans the
normally closed switch in series with the resistor. When a current step
occurs, the elf opens the switch for RC seconds, allowing the capacitor to
take the full current. After RC seconds, the capacitor has charged to a
voltage equal to IR, The elf then closes the switch, allowing the current
Figure 10-4.
Don't Waste Time Feeding a Resistor When a Capacitor Needs to be Charged.
Peaking Principle 2
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