Ultrasonic generator for ultrasonic near field payment

Abstract

The invention discloses an ultrasonic generator for ultrasonic near field payment, including a first phase inverter to a nineteenth phase inverter, a first resistor to a fourth resistor, a first capacitor to a third capacitor, a first inductor to a third inductor, a first triode, a second triode, a third triode and a quad 2-input AND gate. According to the ultrasonic generator for ultrasonic near field payment, the frequency of a signal output by a single chip microcomputer after being subjected to five times frequency amplification and output is fives times of the frequency of an input signal, the signal output by the two phase inverters is square waves, the frequency of the signal output by the phase inverters is two square waves and the signal output by the quad 2-input AND gate is square waves with , the frequency of the signal output by the quad 2-input AND gate is processed by a five-time frequency selecting circuit to output ultrasonic waves, and the near field payment can be completed by receiving the ultrasonic waves through the receiver; therefore, the troublesome of forgetting carrying cashes and bank cards are avoided, and the outgoing of people is facilitated.

Description

technical field [0001] The invention relates to an ultrasonic generator, in particular to an ultrasonic generator used for ultrasonic near-field payment. Background technique [0002] With the development and progress of society, Chinese people's shopping consumption ability is also increasing year by year, but the traditional payment method is still cash payment or card payment, when people do not have enough cash or forget to bring bank cards, there will be The embarrassment of having no money to pay for the purchased goods; at the same time, mobile phones have become indispensable electronic products in people's lives. If the two are combined, it will be more convenient for consumers. When purchasing goods or services, the payment is made to the merchant through the ultrasonic transmission transaction data sent by the mobile phone, and the payment processing is carried out on the spot. Contents of the invention [0003] The purpose of the present invention is to provid...

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Problems solved by technology

[0002] With the development and progress of society, Chinese people's shopping consumption ability is also increasing year by year, but the traditional payment method is still cash payment or card payment, when people do not have enough cash or forget to bring bank cards, there will be The embarrassment of having no money to pay for the purchased good

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