Improving the pulse generator BOOST PFN to increase the amplitude and decrease the pulse duration of the voltage

2016 ◽  
Vol 23 (3) ◽  
pp. 1699-1704
Author(s):  
S. M. Hassan Hosseini ◽  
H. Reza Ghaforinam
Keyword(s):  
Pulse Duration ◽  
Pulse Generator

CMOS PULSE GENERATOR FOR BPSK, OOK, PAM, AND PPM MODULATIONS

2009 ◽  
Vol 18 (03) ◽  
pp. 487-495 ◽  
Author(s):  
VINCENZO STORNELLI ◽  
GIUSEPPE FERRI ◽  
KING PACE
Keyword(s):  
Remote Control ◽  
Power Consumption ◽  
Pulse Duration ◽  
Short Range ◽  
Pulse Generator ◽  
Supply Voltage ◽  
Pulse Repetition Frequency ◽  
Cmos Technology ◽  
Single Chip ◽  
Control Applications

This work presents a single chip integrated pulse generator-modulator to be utilized in a short range wireless radio sensors remote control applications. The circuit, which can generate single pulses, modulated in BPSK, OOK, PAM, and also PPM, has been developed in a standard CMOS technology (AMS 0.35 μm). Typical pulse duration is about 1 ns while pulse repetition frequency is until 200 MHz (5 ns "chip" time). The operating supply voltage is ± 2.5 V, while the whole power consumption is about 15 mW. Post-layout parametric and corner analyses have confirmed the theoretical expectations.

scholarly journals Kilovolt Blumlein pulse generator with variable pulse duration and polarity

2008 ◽  
Vol 79 (4) ◽  
pp. 044301 ◽  
Author(s):  
Andrea de Angelis ◽  
Juergen F. Kolb ◽  
Luigi Zeni ◽  
Karl H. Schoenbach
Keyword(s):  
Pulse Duration ◽  
Pulse Generator

Estimation of Current Amplitude Pulse

2014 ◽  
Vol 1013 ◽  
pp. 166-169
Author(s):  
Victor Gromov ◽  
Vladimir Kuznetsov ◽  
Sergey Konovalov ◽  
Goui Tang ◽  
Gou Lin Song ◽  
...  
Keyword(s):  
Differential Equation ◽  
Current Pulse ◽  
Pulse Duration ◽  
Pulse Generator ◽  
Current Amplitude ◽  
Negative Voltage ◽  
Maximum Value ◽  
Final Formula ◽  
Voltage Change ◽  
Capacitor Charge

Method of estimation of current amplitude (~10 kA) pulses constructed by powerful current pulse generator is suggested. It bases on the solution of differential equation current and voltage change on capacitor. The final formula consists of maximum value of capacitor charge, maximum negative voltage value, pulse duration and capacitor value.

Laser pulse duration effects in Xe2+ ions induced by multiphoton absorption at 0.53 μm

1983 ◽  
Vol 44 (11) ◽  
pp. 1247-1255 ◽  
Author(s):  
A. L'Huillier ◽  
L.A. Lompre ◽  
G. Mainfray ◽  
C. Manus
Keyword(s):  
Laser Pulse ◽  
Pulse Duration ◽  
Laser Pulse Duration ◽  
Multiphoton Absorption

Implanted vagus nerve stimulation in 126 patients: surgical technique and complications

2020 ◽  
Vol 99 (7) ◽  
Keyword(s):  
Vagus Nerve ◽  
Vocal Cord ◽  
Nerve Stimulation ◽  
Vagus Nerve Stimulation ◽  
Pulse Generator ◽  
Operative Procedure ◽  
Intractable Epilepsy ◽  
Vagal Nerve ◽  
University Hospital ◽  
Nerve Stimulator

Introduction: Vagus nerve stimulation is a palliative treatment for patients with refractory epilepsy to reduce the frequency and intensity of seizures. A bipolar helical electrode is placed around the left vagus nerve at the cervical level and is connected to the pulse generator placed in a subcutaneous pocket, most commonly in the subclavian region. Methods: Between March 1998 and October 2019, we performed 196 procedures related to the vagal nerve stimulation at the Neurosurgery Department in Motol University Hospital. Of these, 126 patients were vagal nerve stimulator implantation surgeries for intractable epilepsy. The cases included 69 female and 57 male patients with mean age at the time of the implantation surgery 22±12.4 years (range 2.1−58.4 years). Results: Nine patients (7.1%) were afflicted by complications related to implantation. Surgical complications included postoperative infection in 1.6%, VNS-associated arrhythmias in 1.6%, jugular vein bleeding in 0.8% and vocal cord paresis in 2.4%. One patient with vocal cord palsy also suffered from severe dysphagia. One patient (0.8%) did not tolerate extra stimulation with magnet due to a prolonged spasm in his throat. The extra added benefit of vagus stimulation in one patient was a significant reduction of previously regular severe headaches. Conclusion: Vagus nerve stimulation is an appropriate treatment for patients with drug-resistant epilepsy who are not candidates for focal resective surgery. Implantation of the vagus nerve stimulator is a relatively safe operative procedure.

Androgenic and oestrogenic steroid participation in feedback control of luteinizing hormone secretion in male sheep

1983 ◽  
Vol 102 (4) ◽  
pp. 499-504 ◽  
Author(s):  
M. J. D'Occhio ◽  
B. D. Schanbacher ◽  
J. E. Kinder
Keyword(s):  
Luteinizing Hormone ◽  
Pulse Generator ◽  
Hormone Secretion ◽  
Pulse Interval ◽  
Serum Concentrations ◽  
Luteinizing Hormone Secretion ◽  
Lh Release ◽  
Lh Secretion ◽  
Additional Feedback ◽  
Male Sheep

Abstract. The acute castrate ram (wether) was used as an experimental model to investigate the site(s) of feedback on luteinizing hormone (LH) by testosterone, dihydrotestosterone and oestradiol. At the time of castration, wethers were implanted subdermally with Silastic capsules containing either crystalline testosterone (three 30 cm capsules), dihydrotestosterone (five 30 cm capsules) or oestradiol (one 6.5 cm capsule). Blood samples were taken at 10 min intervals for 6 h 2 weeks after implantation to determine serum steroid concentrations and to characterize the patterns of LH secretion. Pituitary LH response to exogenous LRH (5 ng/kg body weight) were also determined at the same time. The steroid implants produced serum concentrations of the respective hormones which were either one-third (testosterone) or two-to-four times (dihydrotestosterone, oestradiol) the levels measured in rams at the time of castration. Non-implanted wethers showed rhythmic pulses of LH (pulse interval 40–60 min) and had elevated LH levels (16.1 ± 1.6 ng/ml; mean ± se) 2 weeks after castration. All three steroids suppressed pulsatile LH release and reduced mean LH levels (to below 3 ng/ml) and pituitary LH responses to LRH. Inhibition of pulsatile LH secretion by all three steroids indicated that testosterone as well as its androgenic and oestrogenic metabolites can inhibit the LRH pulse generator in the hypothalamus. Additional feedback on the pituitary was indicated by the dampened LH responses to exogenous LRH.

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