Excitation type pulse generator

A technology of pulse generator and inverter, which is applied in the direction of electric pulse generator circuit, logic circuit to generate pulse, automatic power control, etc., can solve the problems of frequency synthesizer difficulty, large area and power consumption cost, etc., and achieve pulse The effect of simple position modulation, low power consumption, and simple design

Inactive Publication Date: 2009-07-29
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, designing a frequency synthesizer needed to generate the carrier is difficult and requires a large area and power penalty

Method used

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  • Excitation type pulse generator
  • Excitation type pulse generator
  • Excitation type pulse generator

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0036] Such as figure 1 Shown is a structural block diagram of an embodiment of the excitation pulse generator of the present invention. The excitation pulse generator includes: an amplifier 200 and a ring oscillator 100 coupled to the amplifier 200 . The ring oscillator 100 controls its output oscillation frequency by the control level Vctrl. The control level Vctrl is obtained from the output terminal of the proportional locked loop 300, and the input terminal of the proportional locked loop 300 is connected to the clock signal Clk.

[0037] Wherein, the input of the ring oscillator 100 is a switch level Vtrigger and a control level Vctrl. The switch level Vtrigger is a trigger signal, and its function is similar to a switch, which is used to trigger whether the ring oscillator 100 works. The control level Vctrl is a control voltage, whi...

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Abstract

In order to reduce the implementation complexity and the system power consumption, and flexibly and controllably produce precise pulse wave shape, the invention provides an excitation type pulse generator, which comprises an amplifier (200), and also comprises a ring-shaped oscillator (100) coupled and connected with the amplifier (200), and the oscillation frequency outputted by the ring-shaped oscillator (100) is controlled by a control level (Vctrl).

Description

technical field [0001] The invention relates to an excitation type pulse generator, in particular to an excitation type pulse generator based on ring vibration. Background technique [0002] Ultra-Wideband (Ultra-Wideband, UWB) technology is an emerging short-range wireless technology, which has gained widespread attention and applications due to its novel spectrum utilization and low power consumption. Among them, narrow pulse ultra-wideband (IR-UWB) is the earliest signal form used in UWB communication. It uses narrow pulse sequences with a width of nanoseconds and sub-nanoseconds for communication. Narrow pulses mostly use Gaussian waveforms or pulse waveforms in the shape of several order derivatives. However, in order to meet the limits of spectrum specifications, complex pulse waveforms are usually required, which are difficult to generate accurately and stably with circuits. [0003] In the field of pulse generation in recent years, various methods for generating pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/03H03L7/18
Inventor 张盛卢恒惠刘萌萌张建良林孝康
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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