Timeline for Spec sheet for a pulse generator: Interpreting current output
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 19, 2016 at 0:29 | vote | accept | andrewH | ||
| Oct 18, 2016 at 1:20 | answer | added | D.A.S. | timeline score: 0 | |
| Oct 18, 2016 at 1:03 | comment | added | D.A.S. | Yes I have used these pulses on needles from acupuncture instead of Western Medicine.. Miracles for one time and only time I had migraines for 3 months straight due to hypo-anemia.. (hemoglobin but something in blood stream eating it up.) After dozen blood tests, MRI , ultrasound, 2 specialists had no clue. So I went to TCM doctor and cured after 5 treatments. | |
| Oct 18, 2016 at 0:44 | comment | added | andrewH | @TonyStewart.EEsince'75 If you give your comment as an answer I'll accept it. It's a Transcutaneous Vagus Nerve Stimulation (tVNS) device. VNS is approved as an adjunctive therapy for certain types of epilepsy, treatment-resistant depression, cluster headaches, and several other conditions. In the US, implanted VNS devices have FDA approval. tVNS units have been approved in Europe and have largely replaced implanted devices. Similar devices are used in Chinese medicine for needleless acupuncture. | |
| Oct 17, 2016 at 20:44 | comment | added | D.A.S. | Yes I=V/R, so what V , what R or what are you needing "exactly" or what is it for? | |
| Oct 17, 2016 at 19:11 | comment | added | andrewH | @TonyStewart.EEsince'75 Thanks, Tony! Just to make sure I understand you correctly, your reply means that the rated current is the current during the pulse, correct? Sorry to be dense. | |
| Oct 17, 2016 at 0:14 | comment | added | D.A.S. | buy this ebay.com/p/… multi-turn trimpot for f and pulse width ? or duty cycle ? > add DC supply. | |
| Oct 16, 2016 at 23:44 | comment | added | D.A.S. | Others might use a CMOS Schmitt Trigger inverter, an input cap, large feedback trim pot to make a square wave or use a dual TTL 74LS123 to make a 1/2ms one shot and the other half of dual 1-shot to vary the dwell from 0.5ms to 200ms with another large Pot and large cap using RC formula in the datasheet. so dual 1shot fixed pulse width can be done several ways. | |
| Oct 16, 2016 at 23:40 | comment | added | D.A.S. | it is usually specified by source impedance or max current at some peak voltage. This current is very low which any CMOS gate can generate. Current can be defined in many terms, peak, average or RMS but for simple logic pulse levels Imax output H & L or Ioh, Iol in all datasheets. If analog then Vo @ Imax are common terms. Normally the source impedance is much lower than the load for slow signals but lab generators are standardized to 50 Ohms for high frequency response reasons into 50 Ohm coax. Your signals are very low frequency and low current. Most hobby guys use a 555 IC timer for this. | |
| Oct 16, 2016 at 23:17 | history | asked | andrewH | CC BY-SA 3.0 |