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205 Threads found on edaboard.com: Insulation
Leakage for ceramics is seldom specified in the datasheets, but is basically defined from the DC operating point and the insulation resistance spec. Here is the related info from
Transformers like that fail if they overheat and the insulation between turns of wire breaks down. When they do that the result is (hopefully) a blown fuse but the chances of one producing too much voltage is almost zero. The voltage it produces SHOULD be higher than battery voltage to enable it to 'push' power into the battery so it charges but t
The voltage rating of an inductor is the maximum voltage that can be applied to the terminals without causing arc- ing or insulation breakdown. Voltage above the maximum rating may cause short circuits between turns, through the insulation, or from the windings to core or frame. Hear DLE-302U-5A is well designed to meet the high voltage requirement
Working voltage is the keyword you are looking for. There is a relation by the test voltage specifications of various safety standards. But the characterization of devices with isolation works basically the other way around. You are targeting a specific working voltage (e.g 1200 V, DC or AC, basic or reinforced insulation, possibly required to be p
Although the silicon components are generally more prone to burn, and the electrolytic capacitors are also affected in the event of any overvoltage, I would not rule out the possibility that the transformer if it is not burned, that at least had its properties changed, In the case of overheating of the insulation varnish of the windings; Just a gue
200 VA isolation transformers without enclosure are available from catalog distributors starting at about 50 EUR. Don't believe that you can make a high frequency converter with safe insulation for the same amount.
The basic misunderstanding is confusing 3000 V test voltage in the Traco data sheet with working voltage, continuously applied voltage or whatsoever. 3000 V test voltage corresponds to 1000 V working voltage in IEC1010 for basic insulation and overvoltage category I. That's much closer to IPC numbers. A additional problem is that IPC specific
First of all, this is not safe. Anyone unaware of this, could inadvertently plug some device into this connector thinking it would have 5v, and would get surprised in the worst way to find out that it has 220v. Moreover, certainly the insulation as well as the clearance of the terminals are not suited for this voltage level, neither to the electric
Does PTFE coated screws provide insulation.Like i want to insulate my PCB from chassis while mounting can i use PTFE coated screws for it.
You'll define net classes with associated design rules for minimum spacing according to required isolation voltage and minimum trace width according to rated current. Need to consider overvoltage category, environmental conditions and basic/reinforced insulation requirements.Then just route the connections.
If you want to build a transformeless voltage multiplier, assuming that components are properly suited for this potential, first of all you'll have to deal with proper component clearance as well enough insulation for avoiding leakage ionizing current flowing across the air, and not necessary to say that it become very dangerous if you do not provi
Hello, We need to wind a 3kW LLC transformer (PQ3535 bobbin) to full UK mains isolation. We want all our windings to be copper foil, the width of the bobbin. We know that the foil?s copper thickness will be 0.15mm, but how thick will the insulation be around the foil? Also, we believe that we won?t have to use margin tape as long as we can have
If you don't need provide additional electric insulation, you can work with a series regulation, by using a combination of smaller transformers instead of using a multi-derivation transformer rated with full power.
Narrowly speaking, the coating is applied for protecting various electronic products such as circuit board, glass, metal and many plastic. The coating surface has the properties of damp-proof, insulation, dust-proof, anti-corona and so on. With the development of electrical technology, electronic product deeps into every corner of daily life. The c
hello, I am looking for a cheap digital multimeter with RS 232 or USB interface.125895 be carreful with low cost RPC model !![
As for sharpness, an ordinary pin (hatpin, safety pin, needle) works for me. I keep a few in my meter case, to take readings from tiny terminals, and to puncture insulation, etc. I grasp them in crocodile clips. You want the point to be sharp enough to dig into metal a tiny bit. Otherwise if it's dull, the point slides along metal surfaces.
assuming it is a purely passive coil you are driving, to short out a magnetic wirewound coil, you would need to put a LOT of current into it so that it heated up and the insulation fried. So, have you measured the CURRENT while it is transitioning? It might be wise to put a current limiting resistor, maybe 1 ohm or so, in series with the coil
hello have you got a galvanic insulation for your AC signal ? Any link with the MAin AC power ( ground, earth,neutral) Maybe your AOP can oscille at H.F., because high speep AOP. you can reduce the Frequency band width C accross feeback
You can maybe squeeze it in there, but you will have no insulation/space safety margins.
proposal: ACS712 hall effect sensor to measure the DC current , with galvanic insulation range 0-5A , 0-20A ADC12 bits like MCP3304 4CH 12 bits for : -Amps (analog signal from ACS712) -Battery voltage -temperature LM35DZ (0-50C) 0 -500mV use classic I2C protocole or maybe a specialized device .. see LTC family power management & other s