what is the Purpose and interest of these part (why do we have to use it in this circuit )?
- 555 - multivibrator - polar capacitor - non polar capacitor my project will be tomorrow I need your help please
Read what I have written in my report . tell me if I'm wrong
Description: • 555 used two times because we want to produce two different voice in the same time . • Pair of astable multivibrators. One runs at a lower fixed frequency, the other doesn't. • Variable resistor used to produce different frequency for each 555 and to control the voice . • Resistor used to protect the capacitor from damage . • Ceramic Capacitor (non polar capacitor) used in a circuit that has high frequency like police siren . • Electric capacitor ( polar capacitor) used because it has a high capacitance to store the voltage and it has a small resistor .
The variable resistors do different jobs in each circuit - find a site that shows all the possible conenctions for a 555 - particularly, and here's a clue "VFO"
The polar caps here are largely used because its a cheap way to get lots of capacitance. Likewise, non-polar caps are avaliable in smaller sizes.
Discussions
7 years ago
Surely you can find out how it works from the site you downloaded it from ?
Steve
Answer 7 years ago
I acutely got it from this link
http://www.youtube.com/watch?v=zWPwtay0dxM
check it please :)
Thank you
Answer 7 years ago
Pair of astable multivibrators. One runs at a lower fixed frequency, the other doesn't.
Answer 7 years ago
what is the Purpose and interest of these part (why do we have to use it in this circuit )?
- 555
- multivibrator
- polar capacitor
- non polar capacitor
my project will be tomorrow I need your help please
Read what I have written in my report . tell me if I'm wrong
Description:
• 555 used two times because we want to produce two different voice in the same time .
• Pair of astable multivibrators. One runs at a lower fixed frequency, the other doesn't.
• Variable resistor used to produce different frequency for each 555 and to control the voice .
• Resistor used to protect the capacitor from damage .
• Ceramic Capacitor (non polar capacitor) used in a circuit that has high frequency like police siren .
• Electric capacitor ( polar capacitor) used because it has a high capacitance to store the voltage and it has a small resistor .
Thank you so much :)
Answer 7 years ago
The variable resistors do different jobs in each circuit - find a site that shows all the possible conenctions for a 555 - particularly, and here's a clue "VFO"
The polar caps here are largely used because its a cheap way to get lots of capacitance. Likewise, non-polar caps are avaliable in smaller sizes.
Steve