Objectives: 1. Draw the hook up diagram using either of the two timers 2. Determine which...

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Objectives: 1. Draw the hook up diagram using either of the two timers 2. Determine which external components control the frequency of the oscillator. 3. Verify the theoretical equations for the on time, off time, frequency and duty cycle of the timer. Equipment and Components: 2 2.2kΩ 1 0.01 uF (dual) 1 LM556 1 DC Power Supply Square Wave Oscillator using the 556 Timer R₁ 3 LM555 1 Dual Trace Oscilloscope 1 Solderless Breadboard 1 Digital Voltmeter 0.01 F Re +Vcc jure 1 - Schematic for running the LM 555 as square-wave generator. Procedure and Results Required: 1. Wire the hook-up diagram. 2. Measure and record the following: (a) maximum output voltage, (b) minimum output voltage, (c) on time of the output voltage, (d) off time of the output voltage, (e) period of the output voltage. 3. Measure and record the following: maximum voltage across the capacitor, (b) minimum voltage across the capacitor, (c) time for the capacitor to reach maximum voltage, (d) time for capacitor to reach minimum voltage. 4. Sketch accurately and with both waves drawn on the same axes the capacitor and output voltage waveforms. Objectives: 1. Draw the hook up diagram using either of the two timers 2. Determine which external components control the frequency of the oscillator. 3. Verify the theoretical equations for the on time, off time, frequency and duty cycle of the timer. Equipment and Components: 2 2.2kΩ 1 0.01 uF (dual) 1 LM556 1 DC Power Supply Square Wave Oscillator using the 556 Timer R₁ 3 LM555 1 Dual Trace Oscilloscope 1 Solderless Breadboard 1 Digital Voltmeter 0.01 F Re +Vcc jure 1 - Schematic for running the LM 555 as square-wave generator. Procedure and Results Required: 1. Wire the hook-up diagram. 2. Measure and record the following: (a) maximum output voltage, (b) minimum output voltage, (c) on time of the output voltage, (d) off time of the output voltage, (e) period of the output voltage. 3. Measure and record the following: maximum voltage across the capacitor, (b) minimum voltage across the capacitor, (c) time for the capacitor to reach maximum voltage, (d) time for capacitor to reach minimum voltage. 4. Sketch accurately and with both waves drawn on the same axes the capacitor and output voltage waveforms.

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