hello.. i have timer 555 ic working in astable mode ..
i need the output to be:
f=1.2Hz
time low(t0) = 416.6666ms
time high(t1)=416.6666ms
what are the values of R1 , R2 and C ?
Homework Answers
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hello.. i have timer 555 ic working in astable mode ..
i need the output to...
1) A 555 timer is operating in an astable mode at a frequency f-40kHz and Duty...
1) A 555 timer is operating in an astable mode at a frequency f-40kHz and Duty cycle D(%)- 85, VCC = 5V, find the range of variation off and D(%) if the voltage at the control input is modulated by a.c. coupling to it an external sine wave with a peak amplitude of IV. Assume C 0.01uF Ir.
A basic change to the astable circuit allows the 555 timer to be used as a triangle waveform generator. What is the func...
A basic change to the astable circuit allows the 555 timer to be
used as a triangle waveform generator. What is the
function of the “RC circuit” part? Briefly explain
why we can obtain triangle waveform in the circuit. Hint:
“integrator”.
+VCC X1 VCC Rint gk R1 9k 2 TRIGGER RESET OUTPUT CONTROL THRESHOLD C5 DISCHARGE 0.1u D1 R2 10k GND D1N4002 1555D C3 C2 0.01u 0.01u integrator part
+VCC X1 VCC Rint gk R1 9k 2 TRIGGER RESET OUTPUT...
Circuit Analysis Vcc +Vcc 10 k2 R3 1kn 4 1 k2 Voi 7 555 A oVo...
Circuit Analysis
Vcc +Vcc 10 k2 R3 1kn 4 1 k2 Voi 7 555 A oVo 3 555 2 R4 10 kn R2 2 1 MQ 5 5 6 C1 1 F C3 0.1 uF C4 10 nF C2 10 nF I Figure Q2 4 Figure Q2 shows an oscillator circuit using two 555 timers. Assume that the reset pin is active low. When the switch is opened: (i) Draw the output waveform (V01) of Timer A indicating clearly the...
1. Consider the astable multivibrator circuit given in Fig. 4.6 with C 100 nF and Vcc-5...
1. Consider the astable multivibrator circuit given in Fig. 4.6 with C 100 nF and Vcc-5 V Reset Discharge 555 Output Threshold Trigger Ground Fig. 4.6. Astable Multivibrator 555 IC Determine the values of the resistors RA and RB to set f-1 kHz and duty cycle-60 % 2. Now consider the monostable circuit of Fig. 4.7. Assume RA 100 k2. Reset Discharge Threshold 555 Output Trigger Ground 0 in Fig. 4.7. Monostable Multivibrator 555 IC Determine C to get a...
8 Assist with Theory please.. TOPIC: 4.3 MONOSTABLE OPERATION OF THE 555 TIMER DEVICE OBJECTIVE: Build...
8 Assist with Theory please..
TOPIC: 4.3 MONOSTABLE OPERATION OF THE 555 TIMER DEVICE OBJECTIVE: Build and test the operation of the 555 timer IC which functions as a monostable multi vibrator. REFERENCE: Manufactures data sheets COMPONENTS: Ix IC 55.5 1 x 0.1 μ-capacitor Tnmpot Resistor pack EQUIPMENT: Development board Logic probe Multi metre INSTRUCTIONS: 1. Draw the circuit to use the 555 timer to function as a monostable multivibrator. 2. The output pulse must have a pulse length of...
Question 8 (6 marks) You have been given a 555 Timer, an LED with Von-2V, a 9V battery that can comfortably supply 5mA...
Question 8 (6 marks) You have been given a 555 Timer, an LED with Von-2V, a 9V battery that can comfortably supply 5mA of current without loss of voltage, a 1uF capacitor and access to any resistor values you want. Design a circuit that causes the LED to flash periodically once per second with a duty cycle of 75% Ensure that it does not draw more than 5mA of current from the battery (i.e 3mA of charging current and 2mA...
ans, RA = 721.5 kohms, RB = 360.8 kohms, R3 = 3.5kohms as an example solution. Question 7 (6 marks) You have been given...
ans,
RA = 721.5 kohms, RB = 360.8 kohms, R3 = 3.5kohms as an example
solution.
Question 7 (6 marks) You have been given a 555 Timer, an LED with Von 2V, a 9V battery that can comfortably supply 5mA of current without loss of voltage, a 1 μF capacitor and access to any resistor values you want. You are to design a circuit that causes the LED to flash periodically once per second with a duty cycle of 75%....
(a) Design a inverting Schmitt trigger circuit to be used as a zero crossing detector with transition voltages about ±25...
(a) Design a inverting Schmitt trigger circuit
to be used as a zero crossing detector with transition voltages
about ±25 mV. Assume the saturation voltages for the op–amp are ±13
V. Draw the voltage transfer characteristic (VTC), i.e., vout vs.
vin.
(b) Design an astable multivibrator to produce
a square signal with a frequency of 1 kHz using C=0.01 µF, R1 = 30
kΩ, and R2 = 20 kΩ. Sketch the circuit waveforms (vo, v +, and v −)
assuming...
Can anyone help with 3-7? or help me get started? im not sure how to set them up. please and than...
can anyone help with 3-7? or help me get started? im not sure
how to set them up. please and thank you
I. The Monostable timer (also called the one-shot, abbreviated OS) has 2. Explain the difference between a retriggerable OS and a non A stable state() os gaun until it times ut. 3. Calculate the duration of the pulse generated by a 535 timer circuit configured to operate as an OS. The external resistance used for the generating the...
1) A 555 timer is operating in an astable mode at a frequency f-40kHz and Duty cycle D(%)- 85, VCC = 5V, find the range of variation off and D(%) if the voltage at the control input is modulated by a.c. coupling to it an external sine wave with a peak amplitude of IV. Assume C 0.01uF Ir.
A basic change to the astable circuit allows the 555 timer to be
used as a triangle waveform generator. What is the
function of the “RC circuit” part? Briefly explain
why we can obtain triangle waveform in the circuit. Hint:
“integrator”.
+VCC X1 VCC Rint gk R1 9k 2 TRIGGER RESET OUTPUT CONTROL THRESHOLD C5 DISCHARGE 0.1u D1 R2 10k GND D1N4002 1555D C3 C2 0.01u 0.01u integrator part
+VCC X1 VCC Rint gk R1 9k 2 TRIGGER RESET OUTPUT...
Circuit Analysis
Vcc +Vcc 10 k2 R3 1kn 4 1 k2 Voi 7 555 A oVo 3 555 2 R4 10 kn R2 2 1 MQ 5 5 6 C1 1 F C3 0.1 uF C4 10 nF C2 10 nF I Figure Q2 4 Figure Q2 shows an oscillator circuit using two 555 timers. Assume that the reset pin is active low. When the switch is opened: (i) Draw the output waveform (V01) of Timer A indicating clearly the...
1. Consider the astable multivibrator circuit given in Fig. 4.6 with C 100 nF and Vcc-5 V Reset Discharge 555 Output Threshold Trigger Ground Fig. 4.6. Astable Multivibrator 555 IC Determine the values of the resistors RA and RB to set f-1 kHz and duty cycle-60 % 2. Now consider the monostable circuit of Fig. 4.7. Assume RA 100 k2. Reset Discharge Threshold 555 Output Trigger Ground 0 in Fig. 4.7. Monostable Multivibrator 555 IC Determine C to get a...
8 Assist with Theory please..
TOPIC: 4.3 MONOSTABLE OPERATION OF THE 555 TIMER DEVICE OBJECTIVE: Build and test the operation of the 555 timer IC which functions as a monostable multi vibrator. REFERENCE: Manufactures data sheets COMPONENTS: Ix IC 55.5 1 x 0.1 μ-capacitor Tnmpot Resistor pack EQUIPMENT: Development board Logic probe Multi metre INSTRUCTIONS: 1. Draw the circuit to use the 555 timer to function as a monostable multivibrator. 2. The output pulse must have a pulse length of...
Question 8 (6 marks) You have been given a 555 Timer, an LED with Von-2V, a 9V battery that can comfortably supply 5mA of current without loss of voltage, a 1uF capacitor and access to any resistor values you want. Design a circuit that causes the LED to flash periodically once per second with a duty cycle of 75% Ensure that it does not draw more than 5mA of current from the battery (i.e 3mA of charging current and 2mA...
ans,
RA = 721.5 kohms, RB = 360.8 kohms, R3 = 3.5kohms as an example
solution.
Question 7 (6 marks) You have been given a 555 Timer, an LED with Von 2V, a 9V battery that can comfortably supply 5mA of current without loss of voltage, a 1 μF capacitor and access to any resistor values you want. You are to design a circuit that causes the LED to flash periodically once per second with a duty cycle of 75%....
(a) Design a inverting Schmitt trigger circuit
to be used as a zero crossing detector with transition voltages
about ±25 mV. Assume the saturation voltages for the op–amp are ±13
V. Draw the voltage transfer characteristic (VTC), i.e., vout vs.
vin.
(b) Design an astable multivibrator to produce
a square signal with a frequency of 1 kHz using C=0.01 µF, R1 = 30
kΩ, and R2 = 20 kΩ. Sketch the circuit waveforms (vo, v +, and v −)
assuming...
can anyone help with 3-7? or help me get started? im not sure
how to set them up. please and thank you
I. The Monostable timer (also called the one-shot, abbreviated OS) has 2. Explain the difference between a retriggerable OS and a non A stable state() os gaun until it times ut. 3. Calculate the duration of the pulse generated by a 535 timer circuit configured to operate as an OS. The external resistance used for the generating the...
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