All Questions
Tagged with esd over-voltage-protection
13
questions
2
votes
0
answers
133
views
Overvoltage Clamping protection for Boost Converter
I think my circuit is failing because of ESD and/or transients when initially connecting my device to a supply. How should I go about protecting the gate of M1? What's the best way to clamp the ...
2
votes
1
answer
278
views
Protect Arduino components from ESD damage from external input
I have an Arduino Due project that senses voltages through an ADC (ADS1115). The ADS1115 voltage sensor inputs will have intermittent connections. I have already fried my compass module by ESD and am ...
- 41
4
votes
2
answers
189
views
Are small-signal MOSFETs without ESD-protection an actual thing?
I want to build a low-bias current (\$\ll\$1 pA) amplifier with a MOSFET for the fun of it. However, after testing the gate-source leakage current of some 2N7002s I was shocked that they leak roughly ...
- 22.5k
1
vote
2
answers
604
views
How to protect differential data lines from ESD?
How do you protect a differential signal line (like Ethernet) without a common ground from high voltage or ESD?
Do you use TVS-diodes from Tx+ to Tx-?
I thought of using TVS-diode arrays due to their ...
- 61
1
vote
1
answer
442
views
ESD and overvoltage protection with varying clamping voltage
I am designing a PCB for analog multiplexing. I want to protect the signal lines against ESD and overvoltage.
The voltage in the signal lines shouldn't exceed the limits of the two supply voltage ...
- 13
0
votes
0
answers
154
views
How to add surge protection and over voltage protection for a smart switch SMPS
I am making a smart switch for toggling appliances with a 10 A relay using esp8266 as my MCU.
I am using an isolated 3 W (5 V, 600 mA) SMPS. I have seen in some specifications about 2.5 kV surge ...
- 109
0
votes
0
answers
539
views
Which circuit is better for P-Channel MOSFET ESD and over-voltage protection?
There was damage to some P-channel MOSFETs on the PCB due to ESD and dielectric strength tests during our manufacturing.
I think the original circuit design is susceptible to high voltage stress.
A ...
- 163
0
votes
1
answer
132
views
Communication Line Protection
I intend to protect a BUS switches ICs, whose voltage on its pins cannot exceed 5.5V and 3.3V. The current cannot exceed 16mA.
The circuits needs to opperate from 3.3V to 5V. But automotive ...
- 917
2
votes
1
answer
770
views
Use TVS and zener diode on the same circuit
In order to protect against ESD and overvoltage at a charger input, I would like to know if it is recommended to use TVS and Zener on the same circuit, if so, what would be the configuration?
The ...
- 21
0
votes
0
answers
467
views
RS422 - Hot swapping - fuse blowing up - tvs?
I have an issue with the following schematic:
When I am doing a hot swapping on the RS422 (Local console) connector X1200, my fuse F1200 blow up. I have a TVS diode to protect against overvoltage on ...
- 21
1
vote
1
answer
92
views
ESD/overvoltage protection with DM1231-02SO TVS array
I'm protecting a USB2.0 IC against ESD and overvoltage at the USB connector using a Diodes Incorporated DM1231-02SO TVS (dual) array. The datasheet labels the pins IN and OUT, but it's not 100% clear ...
- 195
0
votes
2
answers
1k
views
Protecting microcontroller digital output pin from ESD, reverse connection, and other possible user error
I want to protect an output pin from ESD, reverse connection, and other possible user error that might cause damages to my circuit. This pin output pulses depend on the amount of water passing through ...
3
votes
3
answers
545
views
History of ESD protection
These days you can't read anything about electronics without hearing about the dire consequences of omitting ESD protection from your designs.
It seems this wasn't always the case. If you look at ...
- 221