CN201887978U

CN201887978U - Low voltage switch control circuit

Info

Publication number: CN201887978U
Application number: CN2010205760713U
Authority: CN
Inventors: 林禹鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-26
Filing date: 2010-10-26
Publication date: 2011-06-29
Anticipated expiration: 2020-10-26

Abstract

The utility model relates to a low voltage switch control circuit comprising a radio frequency transmitting control circuit, a radio frequency receiving control circuit, a singlechip control circuit and a drive circuit, wherein the radio frequency transmitting control circuit is formed by an MC33493 radio frequency modulation/transmission chip and an RF2132 power amplification chip; the RF2173 radio frequency receiving control circuit is formed by a radio frequency signal amplifying circuit and an MC33593 radio frequency demodulation/receiving chip; and the singlechip control circuit adopts a W77E58 chip with a working frequency of 40 MHz, equal to a 100MHz 8051 singlechip. The low voltage switch control circuit is free from the interference of sound and frequency and does not need wiring, the switch can be adhered onto the wall in any position, and the control circuit has the advantages of long remote control distance and stable property.

Description

A kind of low tension switch control circuit

Technical field

The utility model relates to the control circuit field, particularly relates to a kind of low tension switch control circuit.

Background technology

Traditional switch control lighting circuit, most finish, be provided with unreasonable or owing to marble or glass wall etc. are located but often run into switch with the hardware switch circuit, not attractive in appearance after can not installing or install, can not arbitrarily change the installation site of control switch, make troubles for work and life.

The utility model content

The purpose of this utility model provides and a kind ofly need not connect up, and switch can arbitrarily be pasted any position of wall, has the low tension switch control circuit of Long-distance Control characteristics.

The technical scheme that the utility model adopted is such: a kind of low tension switch control circuit, comprise radio-frequency transmissions control circuit, radio frequency reception control circuit, single chip machine controlling circuit and drive circuit, described radio-frequency transmissions control circuit is made up of MC33493 rf modulations/transmitting chip and RF2132 power amplification chip, and RF2173 radio frequency reception control circuit is made up of rf signal amplification circuit and MC33593 radio demodulating/receiving chip.

K switch is connected in the I/O port of single chip machine controlling circuit U6 and the I/O port of single chip machine controlling circuit U1, when pressing the K switch of single chip machine controlling circuit U6, when supply voltage makes single chip machine controlling circuit U6 the 39th pin be high level through the 1R1 dividing potential drop, when single chip machine controlling circuit U6 inside detects the I/O mouth state variation is arranged, through single chip machine controlling circuit U6 the 21st, 22,23 respectively with MC33493 rf modulations/transmitting chip U4 the 2nd, 1,13 pin connect to form data transmission circuit, promote RF2132 power amplification chip U5 and send radiofrequency signal, after this moment, RF2173 rf signal amplification circuit U3 received rf power signal, through MC33593 radio demodulating/receiving chip U2 to single chip machine controlling circuit U1 data signal, this signal is by MC 33593 radio demodulatings/receiving chip U2 the 14th, 15,16,17 with single chip machine controlling circuit U1 the 1st, 2,3,4 pin connect into communication reading of data circuit, judge the output low level signal by single chip machine controlling circuit U1 internal control, the 33rd pin output electronegative potential of single chip machine controlling circuit U1, make triode T1 conducting through resistance 1R1, relay J 1 adhesive, contactor KM gets, power consumption equipment is controlled and opens or closes simultaneously, when pressing K switch again, single chip machine controlling circuit U1 exports high potential, relay J 1 is discharged, and contactor KM also discharges.

It is the W77E58 chip of 40MHz that described single chip machine controlling circuit adopts operating frequency, is equivalent to 8051 single-chip microcomputers of 100MHz.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this low tension switch control circuit, not disturbed by sound, frequency, need not connect up, switch can arbitrarily be pasted any position of wall, have remote control distance far, the characteristics of stable performance.

Description of drawings

Fig. 1 is the circuit theory diagrams of the utility model embodiment.

Embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, a kind of low tension switch control circuit, comprise radio-frequency transmissions control circuit, radio frequency reception control circuit, single chip machine controlling circuit and drive circuit, described radio-frequency transmissions control circuit is made up of MC33493 rf modulations/transmitting chip U4 and RF2132 power amplification chip U5, the radio frequency reception control circuit is made up of rf signal amplification circuit U3 and MC33593 radio demodulating/receiving chip U2, it is the W77E58 chip of 40MHz that single chip machine controlling circuit adopts operating frequency, is equivalent to 8051 single-chip microcomputers of 100MHz.

Described MC33493 rf modulations/transmitting chip U4, it is by the tuning uhf band modulation/transmitting chip of phase-locked loop, adopt OOK or FSK modulation, working frequency range by the control of BAND (3) pin, modulation system then by MODE (14) pin set, RFOUT (10) pin output frequency F (oUt)=F (Y1) * [Ratio] (PLL).RF2132 power amplification chip U5 is a kind of high power, high efficiency linear amplifier, has the linear power output of 29dBm, and the radiofrequency signal of MC33493 rf modulations/transmitting chip U4 output is carried out power amplification.

Described RF2173 rf signal amplification circuit U3, its function is to be used for the radiofrequency signal that antenna receives is amplified, to improve the signal strength signal intensity of MC33593 radio demodulating/receiving chip U2 input radio frequency signal, gain with 32dB, BAND (3) pin is put low level, select the frequency range of 868～928MHz for use, operating frequency is set in 915MHz, f (Y1)=915MHz/64=14.297MHz, MODE (14) pin is put low level, adopt the OOK modulation system, DATACL K (1), DATA (2), ENABL E (13) pin is respectively clock, data input and chip operation switch are controlled output by single chip machine controlling circuit.

When pressing the K switch of single chip machine controlling circuit U6, when supply voltage makes single chip machine controlling circuit U6 the 39th pin be high level through the 1R1 dividing potential drop, when single chip machine controlling circuit U6 inside detects the I/O mouth state variation is arranged, through single chip machine controlling circuit U6 the 21st, 22,23 respectively with MC 33493 rf modulations/transmitting chip U4 the 2nd, 1,13 pin connect to form data transmission circuit, promote RF2132 power amplification chip U5 and send radiofrequency signal, after this moment, rf signal amplification circuit U3 received rf power signal, through MC33593 radio demodulating/receiving chip U2 to single chip machine controlling circuit U1 data signal, this signal is by MC 33593 radio demodulatings/receiving chip U2 the 14th, 15,16,17 with single chip machine controlling circuit U1 the 1st, 2,3,4 pin connect into communication reading of data circuit, judge the output low level signal by single chip machine controlling circuit U1 internal control, the 33rd pin output electronegative potential of single chip machine controlling circuit U1, make triode T1 conducting through resistance 1R1, relay J 1 adhesive, contactor KM gets, power consumption equipment is controlled and opens or closes simultaneously, when pressing K switch again, single chip machine controlling circuit U1 exports high potential, relay J 1 is discharged, contactor KM also discharges, K switch is connected in the I/O port of single chip machine controlling circuit U6 and the I/O port of single chip machine controlling circuit U1, way be can expand, radio-frequency technique wireless control switch equipment or electric consumption on lighting switch realized.

More than show and described basic principle of the present utility model and principal character and advantage thereof; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. low tension switch control circuit, it is characterized in that: comprise radio-frequency transmissions control circuit, radio frequency reception control circuit, single chip machine controlling circuit and drive circuit, described radio-frequency transmissions control circuit is made up of MC33493 rf modulations/transmitting chip and RF2132 power amplification chip, and RF2173 radio frequency reception control circuit is made up of rf signal amplification circuit and MC33593 radio demodulating/receiving chip;

K switch is connected in the I/O port of single chip machine controlling circuit U6 and the I/O port of single chip machine controlling circuit U1, when pressing the K switch of single chip machine controlling circuit U6, when supply voltage makes single chip machine controlling circuit U6 the 39th pin be high level through the 1R1 dividing potential drop, when single chip machine controlling circuit U6 inside detects the I/O mouth state variation is arranged, through single chip machine controlling circuit U6 the 21st, 22,23 respectively with MC33493 rf modulations/transmitting chip U4 the 2nd, 1,13 pin connect to form data transmission circuit, promote RF2132 power amplification chip U5 and send radiofrequency signal, after this moment, RF2173 rf signal amplification circuit U3 received rf power signal, through MC33593 radio demodulating/receiving chip U2 to single chip machine controlling circuit U1 data signal, this signal is by MC33593 radio demodulating/receiving chip U2 the 14th, 15,16,17 with single chip machine controlling circuit U1 the 1st, 2,3,4 pin connect into communication reading of data circuit, judge the output low level signal by single chip machine controlling circuit U1 internal control, the 33rd pin output electronegative potential of single chip machine controlling circuit U1, make triode T1 conducting through resistance 1R1, relay J 1 adhesive, contactor KM gets, power consumption equipment is controlled and opens or closes simultaneously, when pressing K switch again, single chip machine controlling circuit U1 exports high potential, relay J 1 is discharged, and contactor KM also discharges.

2. a kind of low tension switch control circuit according to claim 1 is characterized in that: it is the W77E58 chip of 40MHz that described single chip machine controlling circuit adopts operating frequency, is equivalent to 8051 single-chip microcomputers of 100MHz.