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5v Dc Converter

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155 Threads found on 5v Dc Converter
We got to about the stated efficiency and frequency on a family of 5V-1V buck ICs using RF CMOS SOI and using only Coilcraft kit inductors & caps we bought from Digi-Key, with no "de-embedding of passive losses" marketing trickery. Just "wallplug". So I think this can be done with superior switch devices. The RF CMOS was not very sensitive
It see this options: - use a buck-boost converter to generate 12 - 15V for the IR2110 independent of supply voltage - use a low-voltage halfbridge driver like FAN7080 - use any other driver circuit (e.g. discrete transistors) that can work with lower supply voltage Please observe that a low voltage driver must use logic level FETs.
Whether 7.5V regulator is initially working and suddenly not working. Or It is not working at all in faulty board (without your touch)... For me it looks like a Dry solder or sometimes if regulator compensation is not designed or on edge we see this kind of behavior....
Hi All I have a current controlled dc/dc full bridge converter with complementary output +85V and -85V that feeds audios amplifier. I'm trying to find the best way of measuring the full bridge output voltage (+85V/-85V) to provide the proper below 2.5V level signal for voltage loop of full bridge. The differential output voltage in steady sate wo
What will be the input voltage to the converter? if it not not much higher than the 5V Arduino input maybe you ca use a regulator.
Are you considering to tie the 5v ground reference with the mains earth ? If yes, I still do not see this as a good decision, particularly if the USB will be used with HID, what mean that will not have a proper safety protection for end user against several disturbances on the mains.
I am using a Buck converter (9V to 5V) and from 5V I am using 1117 3.3V LDO. The output seems fine and everything works but the MCU connected to 3V3 sometimes goes bad. I checked on multimeter and the voltages are proper. I am using 47uF at input of 1117 and 10uF and output. I donot see a very constant output when i check the LDO out
Even the best-laid-out board will have -some- ringing because no zero-inductance trace exists. Putting a probe to the switching output is a great way to ugly up every other measurement point. For such things consider a modest series resistor from probe tip to signal of interest, anywhere this doesn't roll off signal bandwidth unacceptably. The
I have made a DC-DC step-up converter using MC34063A with following components Ct=31 pF Rsc=0.682 Ohm Lmin=4 uH Co=701 uF R=180 Ohm R1=1k R2=3k and I used for the design with following input parameters Vin: 3V Vout: 5V Iout: 100mA Vripple: 1mV(pp) Fmin: 700kHz The problem is the power cons
Your input signal level is almost nothing. Then if you find a circuit that does anything at such a low level then the output current at 1.5V will be nothing.
The datasheet for the OPA2140 opamp shows that its inputs do not work within 3.5V from the positive power supply voltage.
Thanks hobbyckts. I am using THN 15-1221 with 12V power. Its +-5V dual voltage regulator. I just want it to run it all the time. Can I connect it directly with 12V power supply? The reason not to switch is because I will install the switching ckt for +5V and -5V independendently and this regulator gives me the possibilty of on/off both +-5V with
I think you are mixing digital numbers up with analogue currents and voltages. - " i got for 1V was 58 while i had around 290 for 5V". This looks OK, five times the input signal give a five times higher digital number. The question is what do you want your digital number to be when the input, say 0V or 4 mA or what ever, and what you want the numbe
Hi all! I have been trying to build an inverter to go from 14.7V to 120VAC @60hz I have also been trying to learn more about power supplies which I'm find very interesting. I have been looking around at different designs of power supplies by finding junked ones and taking them apart. While it is not junk I bought a 5V boost converter with
Need a Heavy Duty Buck converter with Negative Common. Conditions and Ratings: Input: 18 ~ 30V DC Output: 12.5V / 10A Continuous. Run time: 24hrs at 10A. Cooling system: None / Air Cooling. Input and Output Ground is common. N-Channel MOSFET. This was the conditions. I tried with Push-Pull type, Single Inductor Buck converter and
Hi, I need to design a 24V dc (input supply tolerance 19.2V to 32V dc) to 5V, 3A dc converter with 1.5KV isolation between the input and the output. I want the dc-dc converter to have a high efficiency (90+ if possible) and low ripple (<200mVp-p) at the output I don't want any software control over the converter i.e., I dont want (...)
The PNP transistor inputs of an LM358 dual opamp work perfectly when they are at the voltage of its negative supply pin so it can be a single positive supply inverter when it has a negative voltage to its input resistor. Its output goes as high as +5V only when its supply is about +6.5V.
Most phones have a charger circuit inside that needs 5VDC. If you rectify 5VAC then it produces fluctuating 5V, not steady 5VDC because a pretty big filter capacitor is also needed. How will you make the 5VAC wireless? With huge coils?
Use a relay simply... (Contactor): It has two switches, controlled by the act of electromagnetic field, you supply the relay with 230v AC and branch two terminals to switch 1. From the same source use an AC/DC converter and branch its two terminals (+5|-5V). At the end the output would be for switch 1 230V AC and for switch 2 two terminals as +/-
If I converted a 9v DC to a 5v DC, what will happen to the voltage that has not been used. Will the voltage be preserved or the circuit will just consume it? Thanks :)