Questions tagged [trigger]
A type of oscilloscope sweep in which a *trigger*, or waveform characteristics matching a user-specified condition, will initiate the sweep. A trigger can also be an event, such as a pulse, which causes a circuit to begin performing some action.
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Tektronix 2000B series oscilloscope trigger not triggering camera
We have a Shimadzu high speed camera connected to a Tektronix oscilloscope. We got a new cord for the force sensor and since that point the camera has not been triggered correctly.
It used to be that ...
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Driving 32 SiC MOSFET gate drivers with one function generator trigger signal
I have been having a hard time finding out how to drive 32 gate drivers for SiC MOSFETs from a single function generator signal of 5 V.
My function generator is a Keysight 33500B. I'm using Genesic ...
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Function Between Oscilloscope Trigger and Sampling Storage
I have a query where maybe is stupid but anyway I will dare to ask. How the oscilloscope knows when to start to save the sampling data in his RAM memory in order to process them and display them? I ...
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How to properly trigger and measure a modulated square wave signal with an oscilloscope
I'm having trouble getting a stable trigger on my Rigol DS-1202 oscilloscope for a complex waveform. The waveform is composed of a 25.5kHz carrier square wave modulated by a 200Hz square wave, both ...
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Wide input range Dual Edge Trigger Input (P-Channel N-Channel Linked Pair)
i'm working on a design where I would like to tolerate both source and sink currents as valid inputs, along a wide input voltage range.
Specifically, I would like to have an output logic high for both ...
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Shift Register 4021 Scheme
out of pure interest and a month of free time, I decided to re-create the schematics of some things I had. One of them was the NES controller. I found the schematic on the Internet and decided to make ...
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A sensor's idle voltage is 1.1 V, and its triggered output voltage is 5 V. How can I condition the signal to be <0.2 V idle and ~2.5 V triggered?
I'm triggering a high speed camera with an analog chronometer tower that when un-triggered puts out 1.1 V. When an object passes through the tower, it briefly spikes to 5 V. I'm using an old camera ...
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555 Monostable Mode Press and Hold Trigger
So, I have a 555 Timer in Monostable Mode, like below. I used a 47uF cap and a 47K resistor for the C and R. I press the trigger switch button and let go, and the output goes high for roughly 2.5 ...
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What guarantees are there on when GPIO states are read and written?
I'm fairly new to electronics, coming from software engineering, and it's not clear to me when GPIO states are set or read in microcontrollers relative to a clock pulse.
If on cycle n, I toggle a GPIO,...
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Generating trigger spikes around a reference
I'm experimenting with a circuit to use a IR2151 (self-oscillating half-bridge driver) as an el-cheapo MOSFET driver. Basically take away the "self-oscillating" part and trigger the high and ...
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Three wire remote controller - wiring to two GPIO pins
My remote camera trigger has three wires (red, yellow, white). The white is shared, and the trigger can complete two different circuits by shorting it with either the red or the yellow cable. One of ...
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Explain schematic for one-shot trigger
Can you please help to explain following schematic:
How does this circuit work?
What is the purpose of the diode and the capacitor?
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How to sense the presence of AC voltage that could vary from 17 V to 230 V?
I have a requirement to sense the presence of AC voltage, that could vary from 17 V to 230 V, and trigger a TLPxxx series optocoupler.
The wide voltage range poses a problem in the choice of a ...
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Match function generator output phase to line phase
I am new here so my apologies if I am missing pertinent details. I am trying to cancel a 60Hz EM field by sending a small 60Hz AC current through a loop of wire that I am generating with a function ...
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DS1102E oscilloscope not triggering above 200mV
Once adjusting the vertical scale of my Rigol DS1102E oscilloscope from 200mV to 500mV the signal appears to be lost. Instead of showing the "T'D" (triggered) icon in the top left it then ...
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