Search Results

If those are the voltages you require, then you need a regulator for each one. You have options though, if your current requirements are not very high, you can use an IC with multiple regulators which …

The LT1763 and LT1962 are very low noise parts ~20uV-rms and have a higher PSRR than that of other companies at 65dB, which will give you better noise rejection if operating from a noisy source. The s …

Most likely yes, your going from 20V-rms down to 13.8V so a 2A voltage regulator should be able to do that, but there is a caveat. The voltage drop, which is 6.2V at full load with 2A that will be 12 …

Check out 78XX series DC to DC regulators, they are drop in linear compatible and you can generate negative voltages as shown below:

A better way would be to use a wall-wart connected to one of these: An LT3042 constant current regulator They are low noise and easy to adjust with one resistor to set the current. You can get …

With LED's you want constant current This keeps the LED's from exceeding their current rating and let's the designer avoid using a current limiting resistor or some other circuit to keep the current t …

Twisting wires reduces the magnetic loop area of the wires, this has two implications: Reduced susceptibility to noise from magnetic fields, with twisted wires an a smaller magnetic loop area, extern …

A circuit like this is probably best, as it shuts down the batteries when the supply is plugged in. An oring or diode configuration could be drawing some current from the batteries, best to shut them …

The "specs" are likely for no heat load, the graph below is likely the information for the same module but there is no way to be sure. Either way, the graph shows the relation between heat flow and te …

There is a specific power-up sequence that needs to be followed, make sure you follow it. You may also want to reset the module after power up. Make sure the power transitions from low to high with li …

Generally, unless you really need to it is better to buy power supplies. To answer your question, you could build an efficient rectifier out of these, you would spend some time designing a circuit to …

If it's a guideline or recommendation, then read the datasheet and figure out what the reasoning is behind the guideline. It may not even be applicable to your design. Since the hub is an internal h …

If your going to use a battery to power your rasp-pi, make sure you use a battery charger circuit between it and the pi. Just because it semi-works doesn't mean its safe. For charging, you need a con …

Yes you can, match the voltage of the rail and make sure that the total current of the circuit (and IC's) you are using is less than the current rating on the supply. Realize each voltage source car …

Can I power it from 12V and GND? The supply voltage from \$ V^+ \$ to \$ V^-\$ is 12.6V, so yes. This is found in the absolute maximum ratings section. If you violate the conditions in the absol …