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whey we use polarized capacitor?
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$begingroup$
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
54 mins 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
47 mins 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
54 mins 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
47 mins 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
54 mins 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
47 mins 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
54 mins 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
54 mins 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
47 mins 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
47 mins ago
add a comment |
1 Answer
1
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 46 mins ago
Dave Tweed♦Dave Tweed
123k9152266
$endgroup$
add a comment |
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$begingroup$
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 46 mins 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 46 mins 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 46 mins 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 46 mins ago
Dave Tweed♦Dave Tweed
123k9152266
answered 46 mins ago
Dave Tweed♦Dave Tweed
123k9152266
answered 46 mins ago
Dave Tweed♦Dave Tweed
123k9152266
answered 46 mins ago
Dave Tweed♦Dave Tweed
123k9152266
123k9152266
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.
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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
54 mins 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
47 mins ago