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Re: ADE7756 pin problem
thx for caring ...
i have observed that both DIN and DOUT has high impedance as an input or output, and the datasheet doesn't explain that the pin is open drain either. i have also tried to use pull up with 10K ohm. and it seems the IC still pulling it down.
ade7756
Hi everyone...
i've a real confusing problem with the ADE7756. whenever i made a communication trough SPI, the DIN (data input to ADE7756) was pulled down by the IC itself, i checked this using the scope, the other pins were OK (SCLK,CS). the logic have to be 1(5V) and 0(0V), but the...
It's fine if you thought like that, indeed, you can parallel those two PSU into a single one, but remember the voltages must be at the same level in no tolerance, it's mean that you can only parallel the identical power supplies. But for computer, you can manage to combine PSU without even doing...
By the way, the maximum input voltage with no load is considerably higher than 14 V of course, e. g. 19 or 20 V.
yups. that's true...check with your voltmeter for sure....
check this ...
**broken link removed**
The average DC voltage output from transformer is about 0.9Vpp for full bridge, so your input for LM317 is around 13V
Re: duty cycle range.??
what did you mean with the usually input value for boost? we can use any value for input if we design it ourself
can you be more specific about the boost converter, for example, what it's name code, specification ? from your question i guess that the boost have feedback...
Re: PWM Large LED Array
it's the same thing, PWM is of course will vary the input current. and it's the way for you, indeed. do you know about switching devices? one example is transistor, using this transistor you can either turn on or off the current path, so the pwm can be done. as for the...
diy 220v led driver
The more led to be displayed is the more current you have to supply, it;s meant that you'll need bigger trafo with have higher rating so the current can supply all those Leds. let's says you connect these Leds in parallel, then the total current to be supplied is the current...
The boost converter have duty cycle to be controlled. PWM is usually used for this, and the formula is Vo/Vs = 1 / (1-D) where D is the duty cycle ratio. In the transient response it is normally that the voltage increase that high (it's because of inductor stuff), can you tell me what...
circuit for variable dc power supply
it's just a simple bridge circuit with adjustable regulator, the 317 datasheet tell you that minimum differential input to output voltage is 3V, so the circuit is fine, but indeed, maximum voltage you can get from 14V AC is less than the written one in the...
the above answer is still to expensive for this nonadjustable converter
try using thyristor full bridge : the output voltage Vo = (2Vm cos a)/phi, where Vm is the maximum voltage of AC signal and a is the angle to be controlled
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