CN211099970U

CN211099970U - Ultrasonic power matching and adjusting circuit

Info

Publication number: CN211099970U
Application number: CN201921773441.XU
Authority: CN
Inventors: 黄家相
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-28
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses an ultrasonic power matching adjusting circuit, which comprises a power input circuit, a power matching adjusting circuit, a power output circuit, an impedance matching circuit (or an impedance matching inductor is cancelled) and a transducer, wherein the power input circuit is connected with the power matching adjusting circuit which is also connected with the power output circuit which is also connected with the impedance matching inductor (or an impedance matching inductor is cancelled), the impedance matching circuit is also connected with the transducer, the utility model can automatically adjust the power, accurately match the impedance, reduce the redundant energy consumption, greatly reduce the heat productivity of the transducer and the whole machine, improve the synchronism and the output consistency, and ensure that the power and the output reach good consistency, fundamentally solve a series of problems of inconsistent output power, reactance heating, overheating of the transducer and the like caused by the inconsistent parameters of the transducer, the product quality is more stable and reliable.

Description

Ultrasonic power matching and adjusting circuit

Technical Field

The utility model relates to an ultrasonic wave technical field specifically is an ultrasonic power matches adjusting circuit.

Background

The current method for matching power in the ultrasonic field is as follows:

1. the output transformer outputs a plurality of groups of taps, the taps are manually selected to match the transformer ratio of the transducer and the transformer, and the taps of the transformer need to be manually selected, so that the matching is not accurate enough, and the batch production and debugging are complex (generally, a chassis needs to be opened or a change-over switch needs to be installed on a panel);

2. an inductor (a common inductor or a tap inductor) or a capacitor is connected between the transformer and the transducer in series, and an output capacitor or an inductor is added for matching; an inductor or a capacitor is connected in series in front of the transducer for matching, so that the consistency is poor during production, and the transducer needs to be shut down for operation;

3. adjusting the power by adjusting the conduction time of the power device by PWM (pulse width modulation) at a power output stage; the power is adjusted by adjusting the conduction time of the power device at the power output stage by PWM (pulse width modulation), and the mode is that the output pulse width is adjusted, so that the ultrasonic product generates heat and the power output is not continuous.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultrasonic power matches regulating circuit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an ultrasonic power matching adjusting circuit comprises a power input circuit, a power matching adjusting circuit (the part is a core part of the patent and is a part added to a common ultrasonic circuit), a power output circuit, an impedance matching inductor (or the impedance matching inductor is cancelled) and a transducer, wherein the power input circuit is connected with the power matching adjusting circuit, the power matching adjusting circuit is also connected with the power output circuit, the power output circuit is also connected with the impedance matching circuit, and the impedance matching circuit is also connected with the transducer.

As a further aspect of the present invention: the power matching adjusting circuit is composed of a power device matched with an inductor or a transformer, a capacitor, a diode, a pulse modulation circuit or a micro-control processor and the like.

As a further aspect of the present invention: the power can be matched automatically and the impedance matching inductance can be retained or eliminated.

As a further aspect of the present invention: impedance matching is performed without changing the tap of the output transformer.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can the automatic selection, match accurately, it is unnecessary to reduce, and greatly reduced complete machine calorific capacity, and synchronism and output uniformity improve, make power and output reach fine uniformity.

Drawings

FIG. 1 is a conventional ultrasonic drive circuit;

fig. 2 shows an ultrasonic drive circuit of the present design (the core is a power matching adjustment part before power output).

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, example 1: the embodiment of the utility model provides an in, an ultrasonic wave power matching adjustment circuit, including power input circuit, power matching adjustment circuit, power output circuit, impedance matching circuit and transducer, power input circuit is connected with power matching adjustment circuit, and power output circuit is still connected to power matching adjustment circuit, and impedance matching circuit is still connected to power output circuit, and impedance matching circuit still connects the transducer. The power matching adjusting circuit adopts a power device and a transformer or a device such as an inductor, a capacitor and a diode, and carries out power adjustment on a pulse modulation circuit or a microcontroller. The impedance matching circuit is composed of an inductor. The transducer is an ultrasonic transducer.

As shown in fig. 1, in the prior art, a primary power matching adjustment circuit (adjusting voltage or current) is added to the front end of a power output stage based on the conventional circuit, and the partial power matching adjustment circuit is composed of a power device, a transformer, an inductor, a capacitor, a diode, a special pulse modulation circuit or a micro-control processor, and the like, and can realize automatic feedback control or manual adjustment, so that the power of a rear-end transducer reaches the required power and intensity.

The design can solve the problems, and experiments of various products prove that the sampling control of the MCU (single chip microcomputer) can be automatically controlled according to feedback without manual adjustment (the sampling control can be made into a manual adjustment mode according to requirements), so that the power and the output reach good consistency.

Example 2: on the basis of the embodiment 1, the power matching adjusting circuit is composed of a power device matched with a transformer or an inductor, a capacitor, a diode, a pulse modulation circuit or a micro control processor and the like, and appropriate parameters can be selected according to the use condition.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The ultrasonic power matching and adjusting circuit comprises a power input circuit, a power matching and adjusting circuit, a power output circuit, an impedance matching circuit and a transducer, and is characterized in that the power input circuit is connected with the power matching and adjusting circuit, the power matching and adjusting circuit is also connected with the power output circuit, the power output circuit is also connected with the impedance matching circuit, and the impedance matching circuit is also connected with the transducer.

2. The ultrasonic power matching and adjusting circuit of claim 1, wherein the power matching and adjusting circuit comprises a power device, a transformer or an inductor, an electrolytic capacitor, a pulse modulation circuit or a micro-control processor.

3. The ultrasonic power matching and adjusting circuit of claim 2, wherein the power matching and adjusting circuit employs a power device to adjust power in cooperation with an inductor or a transformer, a capacitor diode, a pulse modulation circuit or a microcontroller.

4. An ultrasonic power matching and adjusting circuit according to claim 3, wherein the power can be automatically matched, and the impedance matching inductance can be retained or eliminated.