The bad caps are both 6.3 V, 4700 µF and i was thinking of replacing them with 16 V, 4700 µF. Yes, you can pick a higher voltage without problems. but getting the better quality 105 °C rated one as the others ones are 85 °C rated. Again, yes, 105°C will last longer. HOWEVER: A 5V SPDT relay is an electrical switch used to control higher-voltage circuits with lower voltage signals. It allows a low-voltage signal, such as the one provided by a microcontroller or other low-power circuit, to control larger loads like motors, lights, and appliances that require more power. The chargers are "generic"; the same model is used for various laptops even with the OEM chargers. The 19.5V is close enough to 19V, it won't make a difference. The 4.62A is slightly less than 4.74A, but 4.74A was likely more than the laptop actually required. If your laptop is heavily expanded and was drawing the limit on the old adapter, the They can be a fixed regulated power supply source. They give output voltage: 5V, 6V, 9V, 10V, 12V, 15V, 18V, 24V at 1.5A max current. It is easy to use, cheap, popular for a long time. Parts used in this below circuits are easily available in most of the local markets. Many Fixed Regulator Circuits 5V,6V,9V,10V,12V 1A using IC-78xx series. Step down converter. Buck converter. Switching converter. DC-DC converter. Check that the input can be set to 5 V, and the output can be set to 1.5 V. Some converters have fixed input/output voltages, others can be changed. A ready made module also contains the necessary resistors/capacitors etc. Share. Cite. The noninverting voltage amplifier is based on SP negative feedback. An example is given in Figure 4.2.1. Note the similarity to the generic SP circuits of Chapter Three. Recalling the basic action of SP negative feedback, we expect a very high Zin, a very low Zout, and a reduction in voltage gain. It can be expressed using a number of equations, usually all three together, as shown below. V = I × R: R = V: I: I = V: R: Where: V is voltage in Volts R is So for example getting 5V from a 12V source using 10 diodes in series would be bad, and the voltage could range from as much as 7V to as little as 2V, depending on the current draw. The 7805 has a minimum voltage of 7V to output 5V at 1 amp, so as long as you can guarantee this 7V you should be okay. Note that the output of the 7805 will vary Whether you mean to use the PNP in common emitter (emitter tied to 5 V) or common collector (collector tied to ground, emitter pulled up to 5 V) configuration, then this circuit will expose the 3.3 V circuit to over-voltage (~4.5 V). At the moment I'm wanting to use the 74hc595. When this is run at 5v it seems to need around 3.7v for an input. v6Nn5z.

can i use 4.5 v instead of 5v