Hi. I've been trying to get the concept of a battery in my head but I struggle to find info. Everything I've found so far is just very basic material.
I understand the positive cathode and negative anode. I'm a bit cloudy on electrolyte. Is it a liquid/paste solution that uses some medium like paper?
I'm not very experienced in LTSpice yet, and I'm stuck with my problem. I'm trying simulate the two transistor and two resistor thyristor and I'm trying to get the typical voltage-current curves. In other words, I'm trying to draw a graph anode-cathode voltage vs. anode current. I simulated it by DC-sweeping the the anode voltage.
i have a project that switches on a variety of LEDs for a scientific instrument. Three are UV, IR and White and the remaining three are packaged in an RGB led with a common cathode. The problem I now have is that as seen in the circuit attached, my MOSFETS are wired (and soldered...) in such a drive that the LEDs have a common anode.
Hi guys, i came across the turning on process of thyristor scr and i am pretty confuse about what my lecturer says, he says that when a gate current is applied the depletion region of the j2 will be increased and this causes regenerative effect and large anode current to flow
But i was confused, doesnt the increased depletion region impede current flow from anode to cathode?
I want to drive some large (2.3") 7 segment displays with a MAX7219. Voltages greater than 5V require some extra components and this circuit shows how to accomplish this for common cathode displays. I have some common anode displays and was wondering if there is a simple way to alter the linked circuit so that it could drive these displays.
Nowadays, cell phone is very popular and convenient for us. However, the high power consumption sometimes makes trouble for us. What can we do to solve this problem?
1. Dont drain the battery power often. Some people know that draining a lithium battery will actually expand its shrinking capacity. However, doing it too often may lead to the damage to the cell phone battery.
Trying to add led lighting to my rc car. Ive averaged the pwm, got my comparator working, fed that into the base of a 2n3904, emitter to ground, collecter to the led cathode, anode to positive rail. Yay led lights. Added more led's in series, no more light. Well figured that was wrong, so I tied all the cathodes together and set all the anodes to their own positive voltage.
UNOs ipower31 has 8000mAh power bank charger for android / iphone,
Worry-free no more low capacity.
This power bank has two USB, can charge nexus / android table in the same time, and it is has a good shape.
Lithium polymer Battery inside, better than 18650 battery,
it's portable, put it in your bag, or pocket ( :) maybe) ,Dimension is 138x68x17mm.