CN2481388Y

CN2481388Y - Remote-controlled receiver for remote-controlled toy

Info

Publication number: CN2481388Y
Application number: CN 01215444
Authority: CN
Inventors: 刘松炎
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-02
Filing date: 2001-03-02
Publication date: 2002-03-13
Anticipated expiration: 2011-03-02

Abstract

The utility model discloses a remote-controlled receiver for remote-controlled toy, comprising a circuit board and a circuit; the circuit comprises a superregenerative circuit, an input circuit, an output circuit and a power supply circuit; the input circuit is arranged between an antenna and the superregenerative circuit, the output circuit is arranged between the superregenerative and an electric part control end of the toy, the power supply circuit is arranged between the power and the superregenerative circuit; the utility model is characterized in that a filter circuit is arranged between the input circuit and the antenna, the syntony circuit of the superregenerative circuit is arranged between an audion base and a ground end. Compared with the prior art, the utility model has the advantages of perfect stability, easy start-up and low requirement for elements.

Description

A kind of receiver of remote-control sytem of remote-control toy

The utility model belongs to the receiver of remote-control sytem of a kind of parts of toy, particularly remote-control toy.The utility model is applicable to that also other has the occasion of radio reception function.

The receiver of remote-control sytem of the present remote-control toy that generally uses, comprise circuit board section and the circuit part on it, circuit part comprises superregenerative oscillating circuit, input circuit, output circuit, power circuit, wherein input circuit is connected between the signal input part of antenna and superregenerative oscillating circuit, output circuit is connected between the signal output part and toy electricity consumption part control end of superregenerative oscillating circuit, and power circuit is connected between the power end of power supply and superregenerative oscillating circuit.The signal input of the superregenerative oscillating circuit of sort circuit directly is added on the frequency resonant circuit of superregenerative oscillating circuit through input circuit by antenna often, the equivalent capacity of antenna will influence the receive frequency of superregenerative oscillating circuit like this, make the uniformity of circuit poor; Frequency resonant circuit in the superregenerative oscillating circuit is to be connected on the colelctor electrode of triode amplifier in addition, because the operating current of transistor collector circuit is big, internal resistance is low, caused the Q value of resonance circuit low, the sensitivity of circuit and poor stability, be not easy starting of oscillation and to the requirement of components and parts than higher.

The purpose of this utility model provides a kind of receiver of remote-control sytem of improved remote-control toy, can overcome the defective of prior art.

The utility model is achieved in that a kind of receiver of remote-control sytem of remote-control toy, comprise circuit board section and circuit part, circuit part comprises the superregenerative oscillating circuit, input circuit, output circuit, power circuit, wherein input circuit is connected between the signal input part of antenna and superregenerative oscillating circuit, output circuit is connected between the signal output part and toy electricity consumption part control end of superregenerative oscillating circuit, power circuit is connected between the power end of power supply and superregenerative oscillating circuit, it is characterized in that also being connected to input filter circuit between described input circuit and the antenna, and the frequency resonant circuit in the described superregenerative oscillating circuit is connected between the base stage and ground end of triode amplifier.

Such scheme can effectively be eliminated the influence of the equivalent capacity of antenna to the superregenerative oscillating circuit owing to be connected to input filter circuit between input circuit and the antenna, and the uniformity of circuit is improved a lot; Simultaneously because the frequency resonant circuit of superregenerative oscillating circuit is to be connected on the base stage of triode, the special triode of working as is connected into common-collector circuit again, circuit has very high input (base stage) impedance, the Q value of frequency resonant circuit is improved greatly, thereby make circuit sensitivity height, good stability, starting of oscillation is easy, also need not be too high to the requirement of components and parts.

Below in conjunction with accompanying drawing the utility model is done to describe more specifically.

Fig. 1 is a block diagram of the present utility model.(omitting circuit board section among the figure)

Fig. 2 is the circuit diagram of a kind of scheme of Fig. 1.

Fig. 3 is a kind of interchangeable equivalents of input filter circuit among Fig. 2.

Fig. 4 is the another kind of interchangeable equivalents of input filter circuit among Fig. 2.

Fig. 5 is a kind of interchangeable equivalents of input circuit among Fig. 2.

With reference to Fig. 1, receiver of remote-control sytem of the present utility model, comprise circuit board section and circuit part, circuit part comprises superregenerative oscillating circuit 1, input circuit 2, output circuit 3, power circuit 4, wherein input circuit 2 is connected between the signal input part of antenna 5 and superregenerative oscillating circuit 1, output circuit 3 is connected between the signal output part and toy electricity consumption part control end 6 of superregenerative oscillating circuit 1, power circuit 4 is connected between the power end of power supply 7 and superregenerative oscillating circuit 1, feature is also to be connected to input filter circuit 8 between input circuit 2 and the antenna 5, and the frequency resonant circuit in the superregenerative oscillating circuit 19 is connected between the base stage and ground end of triode amplifier 10.

With reference to Fig. 2, the circuit part of this receiver of remote-control sytem comprises by triode amplifier BG, resistance R ₁, capacitor C ₁～C ₄, inductance L ₁～L ₂The superregenerative oscillating circuit that constitutes is by capacitor C ₅The input circuit that constitutes is by C ₆The output circuit that constitutes is by R ₂～R ₄The power circuit that constitutes, wherein input circuit is connected between the signal input part b of antenna a and superregenerative oscillating circuit, output circuit is connected between the signal output part c and toy electricity consumption part control end d of superregenerative oscillating circuit, power circuit is connected between power end f, the g of power supply e and superregenerative oscillating circuit, and feature is also to be connected to by C between input circuit and the antenna a ₇, R ₅The input filter circuit that constitutes, and in the superregenerative oscillating circuit by L ₂, C ₂The frequency resonant circuit that constitutes is connected between the base stage and ground end of triode amplifier BG.During work, power supply e powers to the superregenerative oscillating circuit through power circuit, after remote signal is imported from antenna a, through C ₇, R ₅After the filtering of the input filter circuit that constitutes, through C ₅From BG base stage input, and, produce the control signal that is suitable for frequency and transfer to toy electricity consumption part control end d from f point, c point through the amplification and the demodulation of superregenerative oscillating circuit.

With reference to Fig. 3～Fig. 4, this is by C among Fig. 2 ₇, R ₅Two kinds of equivalents that can be used for replacing of the input filter circuit that constitutes, the i.e. R of Fig. 2 ₅Can be by inductance L shown in Figure 3 ₃Or capacitor C shown in Figure 4 ₈Replace, and play equal technique effect.

With reference to Fig. 5, this is by C among Fig. 2 ₅A kind of equivalents that can be used for replacing of the input circuit that constitutes, i.e. C among Fig. 2 ₅Can be by the elementary circle L of transformer T shown in Figure 5 ₄Replace, and the inductance L in the secondary coil pie graph 2 of transformer T ₂, can play equal technique effect like this.

Claims

1, a kind of receiver of remote-control sytem of remote-control toy, comprise circuit board section and circuit part, circuit part comprises the superregenerative oscillating circuit, input circuit, output circuit, power circuit, wherein input circuit is connected between the signal input part of antenna and superregenerative oscillating circuit, output circuit is connected between the signal output part and toy electricity consumption part control end of superregenerative oscillating circuit, power circuit is connected between the power end of power supply and superregenerative oscillating circuit, it is characterized in that also being connected to input filter circuit between described input circuit and the antenna, and the frequency resonant circuit in the described superregenerative oscillating circuit is connected between the base stage and ground end of triode amplifier.

2, by the described receiver of remote-control sytem of claim 1, it is characterized in that described input circuit is by capacitor C ₅Constitute.

3, by the described receiver of remote-control sytem of claim 1, it is characterized in that the elementary circle L of described input circuit by transformer T ₄Constitute, the secondary loops of transformer T constitutes the inductance L of described frequency resonant circuit ₂

4, by the described receiver of remote-control sytem of claim 1, it is characterized in that described input filter circuit is by capacitor C ₇And resistance R ₅Constitute, perhaps by capacitor C ₇And inductance L ₃Constitute, perhaps by capacitor C ₇And capacitor C ₈Constitute.