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59 Threads found on edaboard.com: Supply 50v
Do you have any idea working with ultrasonic transducer as a humidifier driver circuit? I was trying to make one. Tried 1KHz to 500KHz switching, supply voltage: 10V to 50v. But no response but just some small bubbles. also bought a working humidifier from market to check what they doing. Found that, F = 101KHz, duty:24%, voltage: 27Vp-p. Tried
Most audio amps do not have a regulated power supply voltage. They simply use a large enough mains transformer, rectifiers and a large filter capacitor. The DC voltage normally rises a little when the amplifier plays quietly or idles then drops a little at full output power. The little voltage fluctuations are ignored by the circuit.
Dear Friends, I have somewhat experience with SMPS circuits. Last time I developed 12V/8A SMPS PCB. Running good. Second time My requirement is varied little bit (ie 15V-5A). I have just changed the voltage divider network in the Programmable shunt regulator, I got exact output too. Now I Need circuit for 50v/100V -500mA SMPS for one me
I'm currently building a 50v power supply for my Dad's vintage telephone exchange equipment. We needed a 50v 5A unregulated supply to operate the system so I decided to build one. The equipment uses a lot of large electro-magnets, coils, relays that pulse operate. I decided that a linear PSU would be a better choice (...)
single supply 2 op-amp instrument amplifier with bi-polar input, is this possible? i keep reading that it is, then i simulate it and doesn't work. my input is +/- 50v, so that might be part of the issue.
Hi, I need a simple 1A, 0-50v adjustable PSU for the lab. I have found this which looks ok for it's simplicity. However I wonder is a single regulator can do this, like the LM317 which is used up to 30V. - - - Updated - - - I know the thread is for
Description Primary current voltage: ?40V~?50v/7A Secondary current voltage: ?20V/1.5A Output power: 660W Dimension(L*W*H): 210*110*65mm Application: amplifier, instrument, meter, communication, industry control, DC machine driver and other places with DC Constant voltage. Input voltage range: AC160V-270V Vp-p: ≤100mV Voltage stabil
If an ultraviolet print head for a curing machine has a 100W bank of leds on it supplied by a Buck converter LED driver from a 48V rail?then what extra safety precautions need taking if the rail is made to be minus 230VDC? (That?s an ?isolated-from-the-mains? -230VDC). The leds are in Buck connection, with the anode to the 0V rail, so th
Hi all, I would like to get your advice for designing the power architecture(s) for the following power supply: Input: 304-456 Vac ( 3 phase) Output: 50v to 200V - 10A to 100A I want to select between LLC or LCC converter. which is better for this power and such a output variable current. Regards
I have never laid out a PCB with potential higher than 24 volts, so I'm wary that must some "trivals & tricks" I will miss. so please give me your advice what should be paid attention when supply is 50v or 60v (and the current current may be 10A from the 60v supply.) for example special space between lines, cascade structure .... thanks.
Heres a simplified circuit, that inconsistently blows the mosfet. Charging the cap with a 50v 2A limited supply, and firing 5ms pulses at a period of 10s. I sense the current at the 0.001mOhm shunt. What am I doing wrong?
Active and passive EMI isn't related to supply voltage levels.
If we have a power supply to a BTS711L1 High side switch, decoupled by two capacitors in parallel, C2: 220nF/C7: 100nF. The transient test pulse 2a (+37V/+50v, 0.05ms cycles for 500 pulses) with a source impedance of 2 Ohms. How would you calculate the maximum transient voltage across C2/C7?
I have a need to build a constant current supply that can cater upto 15A with using 50v or more if needed. notice there is no fixed value for Vin. Provided with a set figure this CCS must push that current through the load adjusting itself to the approphiate voltage. the accuracy can vary from 0.5A to 1A. Can someone please tell me if the
I am using LEDgroup power supply 500w , 7.2 Amp to drive a 300mA LDD driver which in turns drives a 50v-3.3v circuit. there are 8 other 700mA LDD drivers connected to the power supply . when the circuit is not loaded i get perfect 3.3v but when i load the other LDD drives the 3.3v drops to 2.95v. also I hear a whistleing noise coming (...)
Hi all, I would like to get your advice for designing the power architecture(s) for the following power supply: Input: 304-456 Vac ( 3 phase) Output: 5v to 50v - 10A to 300A I has studied this App note from TI for calculating
You probably need to start over with the 50v power supply (sorry!). The SCR-fed front-end is totally incompatible with power factor correction because the SCR duty cycle is so low. You basically need a conventional 240VAC input-50vDC output power supply: a PFC front end which will generate a 400V or so DC link, followed by a (...)
You can use simple transformer and rectifier to get the source, or you can use PWM for the same. If it is only a dc motor, a simple trafo-rectifier-filter-regulator circuit will be good. It will be very simple to design. Here are some links: www.s
The question is how to deal with transformer to achieve the widest possible voltage regulation and power transmission? Do you know of a sample solution or appnote on a similar switch mode power supply? The fact that components must be designed for the maximum voltage (50v) and max current (say 12A) perhaps goes without saying[
Some time to deal with the idea of ​​building a laboratory source 0-50v approx cca100W / module. The original idea was transformer 230/50v -> step-down converter -> linear regulators. This arrangement would provide good efficiency, high accuracy and low noise. Module could be up to 4 pieces, with everything that used to power one t