Questions tagged [enable]
The enable tag has no summary.
24 questions
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Will this power enable circuit work?
I have an application for a module in a vehicle, it will be powered by a permanent live from the battery and enabled by the ignition key. I have designed it this way so that I can have the MCU safely ...
- 851
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ESP8266: Is there ever a good reason to use the reset pin?
As I understand it, the ESP8266 can be reset by pulling either the Reset pin or the Enable pin to 0V. Holding either pin at 0V will keep the ESP in reset indefinitely.
In addition, holding Enable at ...
- 1,719
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Voltage output with enable?
It's been a long time since I've designed an electronic circuit, can someone please advise the best was to handle this problem.
I have a trigger switch as seen below, the voltage value of SPEED_CTRL ...
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Enable/Disable Power of Board with ESP32-S3
I am using TPS63001 Buck-Boost Coverter with a 3.7 Li-Ion Recharable battery. I want to Control Power of the board with ESP32-S3-Mini. Enable pin of the TPS63001 is connected to MCU and its also ...
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Which is the default state of MCU's GPIO before initialization?
I have a microcontroller that enables an IC. This IC would be enabled when a logic 0 is set in its enable input pin. So, one microcontrollers' GPIO is connected to that pin. My question is, before ...
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How can I add an enable signal to a 3-Phase H-Bridge?
How can I add a signal to turn off or disable a 3-Phase H-Bridge? I have thought about adding a P-channel MOSFET controlled by a signal called Enable to open the voltage source of the bridge or a N-...
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Voltage Supervisor (TPS3840DL) with Step-Down Converter (TPS54202)
I am trying to find the error in my schematic. I want to use the TPS3840DL supervisor to reset (turn off and on again) the TPS54202 step-down converter either when the voltage drops below the ...
- 15
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First time designing an SR latch; I'm using it to control the enable pin on my eFuse IC. Just want to know if I'm overlooking anything
I just finished designing my rectifier module that has a built-in voltage monitor IC and an eFuse IC.
Its purpose is to convert the 3-phase AC output from my wind turbine and use it to power my USB ...
- 343
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595
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MCP2221A and ESP32-S3 Auto Program circuit?
I am currently trying to make my own development board but have run into a bit of a pickle.
I want to be able to Auto Program the ESP32 since pressing a button each time is not something that I would ...
- 11
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Disabling Two Step-Down Converters Together
I have a circuit using two step-down converters (RT8299) which take in 24V and output 12V to power a 12V, up to 6A resistive load. Each converter is rated for 3A, testing has shown the current circuit ...
- 1,592
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Controlling ADC (on/off) with microcontroller
I'm designing a PCB. I want to turn the ADS1120 ADC off/on using the SAMD21G microcontroller. The ADC has two power inputs, 3.3V analog and 3.3V digital. The 3.3V analog is connected to an LDO that ...
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How enable for latch converts to clock in flip flop [duplicate]
Latch has enable signal and we cascade latches to make flip flops. How enable for latch converts to clock in flip flop.
I mean how and why enable driven latches form edge triggered flip flops. Why ...
- 15
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Do you need a current limiting resistor on an enable pin?
I am using MCP16312-E/MS buck regulator and need the component to always be on. I am therefore connecting the enable pin to the Vin supply. Do you need a current limiting resistor? Whilst the resistor ...
- 421
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Is it ok to connect mux !E directly to GND?
I'm using a 74HC4067 mux, which I want always enabled. Is it ok for me to simply connect the !E ("not E" or "inverted E") to GND?
To make the question more generic, is it ok to ...
- 411
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What does "Driven low/high" mean in terms of electronics?
I keep seeing in specs/manuals to drive a pin high or low, what does that really mean?
For example I'm working with a voltage regulator that has an ENABLE pin that says will switch the board to a low ...
- 155