CN207692097U

CN207692097U - A kind of input signal isolation circuit of isolation adjusting control circuit

Info

Publication number: CN207692097U
Application number: CN201721871121.9U
Authority: CN
Inventors: 陈培国; 俞才龙
Original assignee: NINGBO LONGYUAN LIGHTING ELECTRIC APPLIANCE CO Ltd
Current assignee: NINGBO LONGYUAN LIGHTING ELECTRIC APPLIANCE CO Ltd
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2018-08-03
Anticipated expiration: 2027-12-28

Abstract

The utility model discloses a kind of input signal isolation circuits of isolation adjusting control circuit, including controller U1 and 1 10V voltage signal inputs P1, the output end of the controller U1 is as pwm signal end, the signal isolation control circuit being made of transformer and peripheral circuit is connected between controller U1 and 1 10V voltage signal inputs P1, CLKOUT signal control terminal CLKOUT of two input terminals one of signal isolation control circuit as controller U1, another AD signal end of convert AD as controller U1.It is completely isolated that the utility model can realize that the signal between input, output carries out, and neither influences the signal interference between input and output, and make effective transmission of signal between input and output, finally so that circuit is more stablized.

Description

A kind of input signal isolation circuit of isolation adjusting control circuit

Technical field

The utility model is related to a kind of isolation light adjusting circuits, believe more particularly to a kind of input of isolation adjusting control circuit Number isolation circuit.

Background technology

The voltage range of the 1-10V of input is converted into generally by a controller in adjusting control circuit is isolated After digital signal, pwm signal is then converted by controller and is finally conveyed to LED lamp circuit realization dimming effect, but existing Have in technology, then the isolation for the signal voltage that the voltage of 1-10V is realized generally by Capacitor apart is being conveyed to control Device, but when being isolated by bulky capacitor, isolation effect is poor, still can have some interference to output signal, cause to be isolated Effect is poor, therefore how to be related to that a real input, to export direct voltage isolation circuit particularly important.

Utility model content

There is provided purpose of the utility model is to solve above-mentioned the deficiencies in the prior art it is a kind of realization automated oil, It prevents linen thread winding from influencing product weaving quality, improves working efficiency, and reduce a kind of isolation brightness adjustment control electricity of oil consumption waste The input signal isolation circuit on road.

To achieve the goals above, the input signal isolation of a kind of isolation adjusting control circuit designed by the utility model Circuit, including controller U1 and 1-10V voltage signal inputs P1, the controller U1 output end as pwm signal end, It is connected between controller U1 and 1-10V voltage signal inputs P1 and is controlled by the signal isolation that transformer and peripheral circuit are constituted Circuit, the CLKOUT signal control terminal CLKOUT of two input terminals one of signal isolation control circuit as controller U1, separately One AD signal end of convert AD as controller U1.

In order to keep circuit structure simpler, the signal isolation control circuit includes a transformer T1, the first NPN triode Q1, the first diode D1 and the second diode D2, wherein：

The primary and secondary side of the transformer T1 be Same Name of Ends one end on pass through the first tri- poles diode D1 and the first NPN The collector of the collector Opposite direction connection of pipe Q1, the first NPN triode Q1 is also defeated by first resistor R1 and 0-10V voltage signals Enter to hold the anode connection of P1, the cathode of 0-10V voltage signal inputs P1 to be connect with the base stage of the first NPN triode Q1, first Third capacitance C3, base stage and the ground GND of the first NPN triode Q1 are connected between the base stage of NPN triode Q1 and its collector Between be parallel with second resistance R2 and the 4th capacitance C4, being parallel with one between the secondary side both ends of the transformer T1 has 3rd resistor R3 and the 6th concatenated branches of capacitance C6, and the public connecting end of 3rd resistor R3 and the 6th capacitance C6 pass through the second diode The AD signal end of convert AD of D2, the 5th resistance R5 as controller U1, and the secondary side of the transformer T1 and primary side are Same Name of Ends One end on by being used as the CLKOUT signal control terminals CLKOUT of controller U1 after the 5th capacitance C5 and the 4th resistance R4.

In order to keep circuit more stable, connected between the second diode D2 and the public connecting end and ground GND of the 5th resistance R5 There is the 7th capacitance C7, in parallel between AD signals conversion port and ground GND there are one the 6th resistance R2 and a 8th capacitance C8.

A kind of input signal isolation circuit for isolation adjusting control circuit that the utility model obtains, will by transformer T1 The voltage range of input voltage 1-10V and the output dim signal of final control light adjusting circuit are effectively isolated, to realize Input, output between signal carry out it is completely isolated, neither influence input and output between signal interference, and make input with Effective transmission of signal between output, finally so that circuit is more stablized.

Description of the drawings

Fig. 1 is a kind of schematic diagram of the input signal isolation circuit of isolation adjusting control circuit in the present embodiment.

In figure：Signal isolation control circuit 1.

Specific implementation mode

The utility model is further illustrated with reference to the accompanying drawings and examples.

Embodiment：

As shown in Figure 1, a kind of input signal isolation circuit of isolation adjusting control circuit provided in this embodiment, including control The output end of device U1 and 1-10V voltage signal inputs P1 processed, the controller U1 as pwm signal end, in controller U1 and The signal isolation control circuit 1 being made of transformer and peripheral circuit, signal are connected between 1-10V voltage signal inputs P1 CLKOUT signal control terminal CLKOUT of two input terminals one of isolation control circuit 1 as controller U1, another conduct The AD signal end of convert AD of controller U1.The controller U1 is the monolithic using model STM8S003 in the present embodiment Machine.

In order to keep circuit structure simpler, the signal isolation control circuit 1 includes a transformer T1, tri- poles the first NPN Pipe Q1, the first diode D1 and the second diode D2, wherein：

When work, the output of light adjusting circuit is controlled by the voltage range of input voltage 0-10V and finally by transformer T1 Dim signal is effectively isolated, to realize the signal between input, output carry out it is completely isolated, neither influence input with it is defeated Signal interference between going out, and make effective transmission of signal between input and output, finally so that circuit is more stablized.

Claims

1. a kind of input signal isolation circuit of isolation adjusting control circuit, including controller（U1）It is defeated with 1-10V voltage signals Enter end（P1）, the controller（U1）Output end as pwm signal end, it is characterized in that：In controller（U1）With 1-10V voltages Signal input part（P1）Between be connected with the signal isolation control circuit being made of transformer and peripheral circuit（1）, signal isolation Control circuit（1）Two input terminals one be used as controller（U1）CLKOUT signal control terminals（CLKOUT）, another work Device in order to control（U1）AD signal end of convert（AD）.

2. a kind of input signal isolation circuit of isolation adjusting control circuit according to claim 1, the signal isolation Control circuit（1）Including a transformer（T1）, the first NPN triode（Q1）, the first diode（D1）With the second diode（D2）, Wherein：

The transformer（T1）Primary and secondary side be Same Name of Ends one end on pass through the first diode（D1）With tri- poles the first NPN Pipe（Q1）Collector Opposite direction connection, the first NPN triode（Q1）Collector also pass through first resistor（R1）With 1-10V voltages Signal input part（P1）Anode connection, 1-10V voltage signal inputs（P1）Cathode and the first NPN triode（Q1）Base Pole connects, the first NPN triode（Q1）Base stage and its collector between be connected with third capacitance（C3）, the first NPN triode （Q1）Base stage with ground（GND）Between be parallel with second resistance（R2）With the 4th capacitance（C4）, the transformer（T1）Secondary side One is parallel between both ends 3rd resistor（R3）With the 6th capacitance（C6）Concatenated branch, and 3rd resistor（R3）With the 6th electricity Hold（C6）Public connecting end pass through the second diode（D2）, the 5th resistance（R5）As controller（U1）AD signal end of convert （AD）, and the transformer（T1）Secondary side and primary side be Same Name of Ends one end on pass through the 5th capacitance（C5）With the 4th resistance （R4）It is used as controller afterwards（U1）CLKOUT signal control terminals（CLKOUT）.

3. a kind of input signal isolation circuit of isolation adjusting control circuit according to claim 2, it is characterized in that：Second Diode（D2）With the 5th resistance（R5）Public connecting end with ground（GND）Between be connected with the 7th capacitance（C7）, AD signals turn Change port and ground（GND）Between in parallel there are one the 6th resistance（R2）With the 8th capacitance（C8）.