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whey we use polarized capacitor?
What is a decoupling capacitor and how do I know if I need one?Selecting Loading Capacitor Values for 32 kHz CrystalWhat's the use of a decoupling capacitor near a reservoir capacitor?Source of a NP 47µF 60+V capacitor for audio?Can a single, large multilayer ceramic capacitor replace the classic electrolytic + ceramic decoupling capacitor arrangement?Problem with finding capacitors' purpose in PIR circuitHow to avoid a electrolytic capacitor on a (audio) signal path?Non-Polarized Electrolytic Capacitor ReplacementInput and output oapacitor for PoE + DCDC controllerFeedback on a simple motion activated motor circuit
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
$begingroup$
I want to know is the polarized capacitor has the advantage that they are used in some circuits?
For example, in a schematic of the BISS001 PIR controller IC, in some places, a polarized capacitor is used and in some places a non-polarized capacitor one.
Can I use a non-polarized capacitor with the same voltage and capacitance instead of these polarizing capacitors?
Reference Docs:
1.BISS001 datasheet
2.HC-SR501 PIR MOTION DETECTOR datasheet
3.Grove - PIR Motion Sensor or EasyEDA link
capacitor circuit-design polarity
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I want to know is the polarized capacitor has the advantage that they are used in some circuits?
For example, in a schematic of the BISS001 PIR controller IC, in some places, a polarized capacitor is used and in some places a non-polarized capacitor one.
Can I use a non-polarized capacitor with the same voltage and capacitance instead of these polarizing capacitors?
Reference Docs:
1.BISS001 datasheet
2.HC-SR501 PIR MOTION DETECTOR datasheet
3.Grove - PIR Motion Sensor or EasyEDA link
capacitor circuit-design polarity
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago
add a comment |
$begingroup$
I want to know is the polarized capacitor has the advantage that they are used in some circuits?
For example, in a schematic of the BISS001 PIR controller IC, in some places, a polarized capacitor is used and in some places a non-polarized capacitor one.
Can I use a non-polarized capacitor with the same voltage and capacitance instead of these polarizing capacitors?
Reference Docs:
1.BISS001 datasheet
2.HC-SR501 PIR MOTION DETECTOR datasheet
3.Grove - PIR Motion Sensor or EasyEDA link
capacitor circuit-design polarity
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I want to know is the polarized capacitor has the advantage that they are used in some circuits?
For example, in a schematic of the BISS001 PIR controller IC, in some places, a polarized capacitor is used and in some places a non-polarized capacitor one.
Can I use a non-polarized capacitor with the same voltage and capacitance instead of these polarizing capacitors?
Reference Docs:
1.BISS001 datasheet
2.HC-SR501 PIR MOTION DETECTOR datasheet
3.Grove - PIR Motion Sensor or EasyEDA link
capacitor circuit-design polarity
capacitor circuit-design polarity
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
hamid mousavi
asked 1 hour ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
hamid mousavihamid mousavi
62
asked 1 hour ago
hamid mousavihamid mousavi
62
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago
add a comment |
$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago
$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
The physical size of a capacitor is a function of the thickness of the dielectric (among other things).
Early on, it was discovered that the oxides of certain metals (aluminum and tantalum in particular) made good dielectrics, and could be made very thin through a chemical process — orders of magnitude thinner than other dielectrics such as waxed/oiled paper and plastic film. Therefore, the electrolytic capacitor was invented to provide high capacitance in a reasonable volume.
Unfortunately, the chemical process requires that the voltage across the capacitor must have only a single polarity, so these capacitors are "polarized". Reversing the polarity degrades and eventually destroys the oxide layer. It's something we just have to live with in order to take advantage of this technology.
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
$endgroup$
add a comment |
$begingroup$
What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized.
But the designers of this circuit could have used a non-polarized capacitor or even polarized tantalum capacitors. Is it true? As the (Grove - PIR Motion Sensor) module uses polarized tantalum capacitors.
I want to know is the polarized capacitors are being used for circuit protection or is there any other reason?
Is there a problem if these capacitors are replaced with non-polarized capacitors in this circuits?
Sorry For My Bad English.
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
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2 Answers
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active
oldest
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2 Answers
2
active
oldest
votes
active
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active
oldest
votes
$begingroup$
The physical size of a capacitor is a function of the thickness of the dielectric (among other things).
Early on, it was discovered that the oxides of certain metals (aluminum and tantalum in particular) made good dielectrics, and could be made very thin through a chemical process — orders of magnitude thinner than other dielectrics such as waxed/oiled paper and plastic film. Therefore, the electrolytic capacitor was invented to provide high capacitance in a reasonable volume.
Unfortunately, the chemical process requires that the voltage across the capacitor must have only a single polarity, so these capacitors are "polarized". Reversing the polarity degrades and eventually destroys the oxide layer. It's something we just have to live with in order to take advantage of this technology.
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
$endgroup$
add a comment |
$begingroup$
The physical size of a capacitor is a function of the thickness of the dielectric (among other things).
Early on, it was discovered that the oxides of certain metals (aluminum and tantalum in particular) made good dielectrics, and could be made very thin through a chemical process — orders of magnitude thinner than other dielectrics such as waxed/oiled paper and plastic film. Therefore, the electrolytic capacitor was invented to provide high capacitance in a reasonable volume.
Unfortunately, the chemical process requires that the voltage across the capacitor must have only a single polarity, so these capacitors are "polarized". Reversing the polarity degrades and eventually destroys the oxide layer. It's something we just have to live with in order to take advantage of this technology.
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
$endgroup$
add a comment |
$begingroup$
The physical size of a capacitor is a function of the thickness of the dielectric (among other things).
Early on, it was discovered that the oxides of certain metals (aluminum and tantalum in particular) made good dielectrics, and could be made very thin through a chemical process — orders of magnitude thinner than other dielectrics such as waxed/oiled paper and plastic film. Therefore, the electrolytic capacitor was invented to provide high capacitance in a reasonable volume.
Unfortunately, the chemical process requires that the voltage across the capacitor must have only a single polarity, so these capacitors are "polarized". Reversing the polarity degrades and eventually destroys the oxide layer. It's something we just have to live with in order to take advantage of this technology.
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
$endgroup$
The physical size of a capacitor is a function of the thickness of the dielectric (among other things).
Early on, it was discovered that the oxides of certain metals (aluminum and tantalum in particular) made good dielectrics, and could be made very thin through a chemical process — orders of magnitude thinner than other dielectrics such as waxed/oiled paper and plastic film. Therefore, the electrolytic capacitor was invented to provide high capacitance in a reasonable volume.
Unfortunately, the chemical process requires that the voltage across the capacitor must have only a single polarity, so these capacitors are "polarized". Reversing the polarity degrades and eventually destroys the oxide layer. It's something we just have to live with in order to take advantage of this technology.
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
answered 1 hour ago
Dave Tweed♦Dave Tweed
123k9152266
123k9152266
add a comment |
add a comment |
$begingroup$
What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized.
But the designers of this circuit could have used a non-polarized capacitor or even polarized tantalum capacitors. Is it true? As the (Grove - PIR Motion Sensor) module uses polarized tantalum capacitors.
I want to know is the polarized capacitors are being used for circuit protection or is there any other reason?
Is there a problem if these capacitors are replaced with non-polarized capacitors in this circuits?
Sorry For My Bad English.
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized.
But the designers of this circuit could have used a non-polarized capacitor or even polarized tantalum capacitors. Is it true? As the (Grove - PIR Motion Sensor) module uses polarized tantalum capacitors.
I want to know is the polarized capacitors are being used for circuit protection or is there any other reason?
Is there a problem if these capacitors are replaced with non-polarized capacitors in this circuits?
Sorry For My Bad English.
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized.
But the designers of this circuit could have used a non-polarized capacitor or even polarized tantalum capacitors. Is it true? As the (Grove - PIR Motion Sensor) module uses polarized tantalum capacitors.
I want to know is the polarized capacitors are being used for circuit protection or is there any other reason?
Is there a problem if these capacitors are replaced with non-polarized capacitors in this circuits?
Sorry For My Bad English.
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized.
But the designers of this circuit could have used a non-polarized capacitor or even polarized tantalum capacitors. Is it true? As the (Grove - PIR Motion Sensor) module uses polarized tantalum capacitors.
I want to know is the polarized capacitors are being used for circuit protection or is there any other reason?
Is there a problem if these capacitors are replaced with non-polarized capacitors in this circuits?
Sorry For My Bad English.
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 min ago
answered 10 mins ago
hamid mousavihamid mousavi
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 10 mins ago
hamid mousavihamid mousavi
62
answered 10 mins ago
hamid mousavihamid mousavi
62
62
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
hamid mousavi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
hamid mousavi is a new contributor. Be nice, and check out our Code of Conduct.
hamid mousavi is a new contributor. Be nice, and check out our Code of Conduct.
hamid mousavi is a new contributor. Be nice, and check out our Code of Conduct.
hamid mousavi is a new contributor. Be nice, and check out our Code of Conduct.
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$begingroup$
It's not because we want them polarized, but them being polarized is a consequence of how they'r emade.
$endgroup$
– Hearth
1 hour ago
$begingroup$
Compare the prices of electrolytic caps with ceramic (or film) caps in the range of 10uF ~22uF (after taking bias voltage derating into consideration) and you will have one of the reasons.
$endgroup$
– Wesley Lee
1 hour ago
$begingroup$
The very thin oxide layers, providing insulation for a certain polarity, provides a very compact energy storage module. Just view those useful electrolytic capacitors as early versions of self-assembled-nano-tech; the manufacturing process creates the very thin oxide layer: the oxide is GROWN or FORMED.
$endgroup$
– analogsystemsrf
1 hour ago