In neurophysiological investigation there is often need for a device which can precisely control the duration and repetition rate of a volley of electrical stimuli delivered to the tissue under observation. An electronic circuit (Fig. 1 ) was designed and built to meet that need. The circuit has three main components-the gating, univibrator, and pacemaker tubes. The gating tube (6SN7) is a cath...

In order to improve the precision and surface quality of Electrical Discharge Machining (EDM), the paper studies the application of complex programmable logic device (CPLD) used in pulse power for EDM, according to the characteristics of the device, using VHDL language input and schematic input method to design control circuit for EDM pulse power. Keyword: EDM; CPLD; VHDL language; pulse power

a fully integrated, ultra low-power, varying pulse width fifth-order derivative Gaussian pulse generator designed and fabricated in a commercial 0.18μm CMOS technology is reported for 3-10GHz impulse ultra wideband (UWB) transceivers. The fifth-order derivative Gaussian pulse generator circuit consists of four parallel Gaussian pulse formation blocks and an output stage. It can generate UWB pul...

This paper proposes a modi ed model of the oscillator network, LEGION, suitable for VLSI implementation. The model performs gray-level real image segmentation using nonlinear analog dynamics. Because of the limited calculation precision in VLSI implementation, it is important to estimate the calculation precision required for proper operations in the modi ed model. By using numerical simulation...

This paper proposes a new arbitrary nonlinear transfer function generator circuit based on pulse-phase modulation. The circuit can generate an arbitrary non-monotone function with an identical circuit con guration. Chaotic signal generators using this function generator are also proposed. Circuit simulation results demonstrate that the new approach achieves high precision transformation. These ...

this paper proposes a buffer circuit for footed domino logic circuit. It minimizes redundant switching at the output node. This circuit prevents propagation of precharge pulse to the output node during precharge phase which saves power consumption. We have calculated the power consumption, delay and power delay product of proposed circuits and compared the results with existing domino circuit f...

This paper presents the development of delay pulse circuit with 1ns resolution for both driving ultrasonic array transducers and digital receive beamforming for ultrasonic phased array system. The circuit which can supply pulses with a 1ns time resolution employs the phase shifting with phase locked loop (PLL). In this way, 6 phase clocks with 1ns phase difference are generated, which are used ...

According to the characteristics of human pulse wave signals, the acquisition system acquisition system with excellent performance is designed, 16 bit MCU MSP430 with ultralow power is used to record, process and transmit the collected pulse wave signals. In order to make the hardware part satisfy acquisition requirements of pulse wave, the paper focuses on discussing composition, operating pri...

For the past several years, much progress has been made in Low power VLSI Design .In This paper ,a novel low-power pulse Triggered flipflop design is presented. First, the pulse generation control logic an AND function, is removed from critical path to facilitate a faster discharge operation. A simple two-transistor AND gate design is used to reduce the circuit complexity. Second, a conditional...