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I think you need to use an Instrumentation amplifier for better operation(in case you don't know you can find some info here https://en.wikipedia.org/wiki/Instrumentation_amplifier ),so in case you need a single supply or/and cheaper INA you can either build a one using 3 op amps or look for a...
I didn't notice any problem(except for the zero dead time,which isn't related to not working at all),so u should revise other stuff,take a look at Proteus -of course u checked the reset pin!-,.also u can test timer0 interrupt alone at first to be sure that it works fine and generate any...
can you post the Power Control PWM module intialization it could contain the problem?
Also take care of fault signals although PROTEUS may not take them in action.
I think u should revise the timing requirement(Bus Timing Characteristics) in pages 49 & 52
here https://www.sparkfun.com/datasheets/LCD/HD44780.pdf & compare them to the timing used in your code.
Also u should revise timing needed during initialization in pages 45 & 46
(also LCD intial. here...
Raza you are right.
I made the circuit with MC34063 and the result is:
With a new battery (just get out of its plastic cover) is used , i adjusted the output to 19.3Volt without a load when loading with 670ohm resistor the voltage drops to 19.1Volt so now I get more than 0.5Watt(not bad for...
Is a chip as uc3843 more suitable to make this regulator -i.e. more power saving and efficient and of course have the ability to operate as a boost sps- ?
Or power dissipated in current sense resistor is unavoidable?
Thanks alot FvM & Raza , at last I found a good solution in the local...
Can you make it more clear for me.
I said 1W i.e. 1Watt for 9Volt ---> I = P/V = 1/9 = 0.111 = 111mA(approx), what is this I=W/E² ??? is this used to calculate voltage battery drop at certain current drained , I think the circuit won't stop to work if input voltage dropped a little (say till...
for FvM
what exactly in the attatched circuit that doesn,t fit the 9V battery??
for Raza
Thanks alot for those usage curves but i can't relate them well to my case, for example if i get 15V output can't i reach a current of 50mA?(say 1hour per day?)
ASA
I wanted to make a voltage booster in order to power up some projects that need more than 9V supply with only 9V battery.
I searched in local market for chips that make voltage boost but I didn't find any.So ,I decided to build it my self.I did make a fly-back sps but the output current was...
ok an external ADC to be used.
well the sampling rate is quite higer than this and so i want to use the full speed i am not sure i can buffer the data without the use of external memory [which i dont want to use]!
the problem is that the data are sampled very fast in order to get accurate measurment in addition to changing from parallel to serial make the speed 8 times faster!
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