Superregenerative receiver with ultra-low power consumption

Abstract

The invention discloses a superregenerative receiver with ultra-low power consumption. The superregenerative receiver comprises an antenna. An output end of the antenna is connected with a second low noise amplifier, a second superregenerative oscillator, an extinguishing generator, a second delay circuit and a second lowpass filtering circuit in sequence. An output end of the extinguishing generator is connected with an extinguishing signal input end of the second superregenerative oscillator. An output end of the second delay circuit is connected with a reset signal input end of the extinguishing generator which is used for enabling outputted extinguishing signals to hop according to outputted signal amplitude of the second superregenerative oscillator. The hopped extinguishing signals are sent to the superrengnerative oscillator, can be used as reset signals through the second delay circuit and are fed back to the extinguishing generator so as to enable the hopped extinguishing signals to reset. The superregenerative receiver can achieve the purpose of low power consumption, and can be widely used in the field of communication technology.

Description

technical field [0001] The invention relates to communication technology, in particular to a super-regenerative receiver with ultra-low power consumption. Background technique [0002] For the super regenerative receiver, because of its simple structure, it is widely used in the front-end circuits of radio frequency receivers such as ASK and OOK. There is a constant self-extinguishing oscillator in the super-regenerative receiver, and the time from start-up to extinguishment of the oscillator is closely related to the power consumption of the super-regenerative receiver (because the frequency of the oscillator is fixed, the super-regenerative receiver The power consumption of the machine is closely related to the number of oscillation cycles of the oscillator), the relationship is: the more the number of oscillation cycles required, the greater the power consumption. Usually, there are two ways to generate the self-extinguishing frequency: the first is to use the frequency ...

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Problems solved by technology

[0005] According to the above, it can be seen that the delay time T2 introduced for the complete extinguishment of the oscillation is directly added to the extinguishment signal and delays the extinguishment of the first super regenerative oscillator by T2 (that is, the additional loss of oscillation energy of T2 time length) , it can be concluded that this circuit structure will inevitably produce a large power consumption

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