\$\begingroup\$ I made an LM317 regulator circuit to provide 4.2 V, however 1. it is a waste of energy 2. it needs a heatsink and can be quite bulky 3. I started to wonder - if the device turns on fine using the 5V provided on the charging port, and it is actually specified to 4.2V, then it might be able to run from 5V as well.
Jan 22, 2007. #9. Buy the 6 volts and stick a diode of 5 amps in series like + to the diamond and the stripe to your device. it will drop 6 v -~.7v =5.3volts want 5 exact then you need a regulator like LM117 WITH BYPASS tranx.

This DC converter could also be used to charge other devices at different V ratings (altered via its dial) which I tested (3V = 3.5V/2.5A, 6V = 6.5V/2.5A, 9V = 9.5V/2.5A), is just small enough to fit in the pocket of the Mercury 27W panel and will directly charge 12V devices via the range of plugs provided (5.5 x 2.1mm, 5.5 x 2.5mm, etc.) and

Instead of using a latch and the Arduino's PWM pins, we have a fully-dedicated PWM driver chip onboard. This chip handles all the motor and speed controls over I2C. Only two pins (SDA & SCL) are required to drive the multiple motors, and since it's I2C you can also connect any other I2C devices or shields to the same pins.

2. I connected another wire from PDB's 5V rail to one of the FC board's 5V pin to power the FC. 3. I connected the VCC (battery voltage ~16V) to FC's VBAT pin - FC can now measure correct battery voltage (the on-board 5V regulator is not needed; the VCC wire is only used for FC voltage measurement).

Compared to GPT-3.5, GPT-4 is smarter, can handle longer prompts and conversations, and doesn't make as many factual errors. However, GPT-3.5 is faster in generating responses and doesn't come with the hourly prompt restrictions GPT-4 does. If you've been following the rapid development of AI language models used in applications like ChatGPT
This can be done by hooking up the output of the adapter to a simple 5V linear regulator (the 7805) -- the dropout would probably be low enough at 200mA to supply 5V.
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In every technical document, summary, and description of the ESP8266, the ESP8266 is said to be a 3.3V part. While we’re well into the age of 3.3V logic, there are still an incredible number of
Note that 3800 mAh AA rechargeable batteries do not exist. Batteries of lower capacity with 3800 mAh labels may exist. Such batteries are often low quality. Reputable NimH AA are available up to 2500 mAh and PERHAPS slightly more. An Alkaline battery is about 1.55V when new but drops rapidly to 1.3-1.4V range and then drops with use to about 1V.
Here is the 7805 datasheet which is the popular 5V voltage regulator IC and the 7805 pinout. It is designed to provide a constant 5V at 1.5A max when powered by 7.3V to 35V. We usually use it as a stable voltage source for a common digital circuit. Sometimes, the power supply using a transformer can have too high a voltage.

If your laptop needs less electric current then it is fine. However, if you would use the 65W charger on a height-performance laptop, which consumes more than than 3.34 A, it could overheat. The voltage of the charger is important for your comparison. The voltage of all three is 19.5 V (voltage * electric current = power).

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    • can i use 4.5 v instead of 5v