CN207380472U - A kind of energy-saving electronic control circuit - Google Patents
A kind of energy-saving electronic control circuit Download PDFInfo
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- CN207380472U CN207380472U CN201721457407.2U CN201721457407U CN207380472U CN 207380472 U CN207380472 U CN 207380472U CN 201721457407 U CN201721457407 U CN 201721457407U CN 207380472 U CN207380472 U CN 207380472U
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Abstract
The utility model discloses a kind of energy-saving electronic control circuit, including transformer, standby circuit for detecting, standby trigger circuit, timers trigger circuit and electronic switch trigger circuit；Electronic switch trigger circuit connects with the primary side of transformer, and the secondary of transformer is used to connect load；Metal-oxide-semiconductor is serially connected in the PWM circuits of transformer primary side；The gate pole of metal-oxide-semiconductor connects the signal output part of the PWM drive circuit；Standby circuit for detecting includes sampling resistor（R11）And comparator；Sampling resistor is serially connected in the current supply circuit of transformer secondary, and the voltage signal on sampling resistor connects the first input end of comparator；Second input termination reference voltage of comparator；The output terminal reception machine trigger circuit of comparator；Standby trigger circuit is serially connected in the main circuit of feedback circuit, for controlling the break-make of main circuit.The energy-saving electronic control circuit of the utility model can disconnect main circuit automatically in zero load, save energy consumption.
Description
Technical field
The utility model is related to a kind of energy-saving electronic control circuits.
Background technology
It is well known that as world community is to the attention in terms of energy consumption, the requirement of product Energy Efficiency Standard also improves again and again,
In, the no-load power consumption of product is exactly a urgent problem to be solved.Although the development of electronic technology has caused power supply IC in itself
Stand-by power consumption be greatly lowered, but in today that electrical equipment is intelligent, " lazybootization " is more prevailing, daily in standby shape
The quantity of the electronic equipment of state is more huge, then the standby total losses for resulting in various product are all huge always.If only by partly leading
The technology of body IC develops if meeting, and not only capital investment is huge, and is also difficult to solve the problems, such as in a short time on the time.Cause
And, it is necessary to separately ward off shortcut, while excessively control circuit cost is not increased, it can more greatly reduce the standby work(of product
Consumption.
At present, now on the market there are mainly two types of schemes：
1st, two-stage circuit：Prime primary side controls primary side PWM IC with electronic circuit, and the use of rear class secondary need have auxiliary electricity
The comparison circuit in source feeds back to the electronic circuit of primary side by coupler.This mode disadvantage be exactly rear class need have it is auxiliary
Power supply is helped, no-load power consumption is so resulted in increase or even increase to six grades of basic Energy Efficiency Standards and is all difficult to reach.
2nd, single-level circuit：Increase switch directly on ac input voltage circuit or touch relay.This mode is maximum
Shortcoming is exactly that can not achieve intelligent control mode, it has to manual switch.
Therefore, it is necessary to design a kind of new energy-saving electronic control circuit.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of energy-saving electronic control circuit, the utility model
Energy-saving electronic control circuit can disconnect main circuit automatically in zero load, save energy consumption.
The technical solution of utility model is as follows：
A kind of energy-saving electronic control circuit is touched including transformer, standby circuit for detecting, standby trigger circuit, timer
Power Generation Road and electronic switch trigger circuit；
Electronic switch trigger circuit connects with the primary side of transformer, and the secondary of transformer is used to connect load；
Metal-oxide-semiconductor is serially connected in the PWM circuits of transformer primary side；The gate pole of metal-oxide-semiconductor connects the signal of the PWM drive circuit
Output terminal；
Standby circuit for detecting includes sampling resistor（R11）And comparator；Sampling resistor is serially connected in the power supply of transformer secondary
In circuit, the voltage signal on sampling resistor connects the first input end of comparator；Second input termination reference voltage of comparator；
The output terminal reception machine trigger circuit of comparator；Standby trigger circuit is serially connected in the main circuit of feedback circuit, for controlling master
The break-make of circuit.
Standby circuit for detecting further includes to generate the regulator circuit of the reference voltage.Using TL431 devices, i.e. U7.
Comparator uses operational amplifier.
The output terminal of comparator is connected by photoelectrical coupler with the control terminal of timers trigger circuit.
Time-delay trigger is also associated between the control terminal of photoelectrical coupler and electronic switch trigger circuit.
Power switching devices are relay, and the normal open switch of relay is serially connected in the main circuit of power supply circuit, relay
Coil first termination direct current supply voltage, the coil of relay second termination time-delay trigger output terminal.
The second end of the coil of relay is grounded through thyristor；The plus earth of thyristor, the cathode of thyristor succeed electricity
The second end of the coil of device, the output terminal of the triggering termination time-delay trigger of thyristor.
Timers trigger circuit peripheral circuit with comparator (U4) (device for example with model LM293 etc.)
It forms, output terminal connects the control terminal of timer.
Timer circuit uses easy means, with operational amplifier（U3）(device for example with model LM258 etc.)
Peripheral circuit is coordinated to form, output terminal connects the control terminal of electronic switch trigger circuit.
Electronic switch trigger circuit uses comparator（U1）（Device for example with model LM293 etc.) composition, it is defeated
The triggering end of thyristor in outlet connection electronic switch trigger circuit
U2 is PWM integrated circuits（Device for example with model OB2362A etc.), U5 is comparator, is detectd for standby
Slowdown monitoring circuit completes the differentiation with the state of load；U6 is optocoupler（Device for example with model PC817 etc.）, primarily serve original
Secondary buffer action, U7 are controllable accurate source of stable pressure, such as use TL431 devices.Vcc in figure is internal DC power supply, is used
In the needs of the working power of each control circuit.
Advantageous effect：
The energy-saving electronic control circuit of the utility model, monitoring transformer secondary end in real time using standby circuit for detecting is
It is no to there is zero load, once there is unloaded situation, then it is automatic to disconnect main circuit of powering, so as to avoid no-load power consumption, realize energy saving drop
The purpose of consumption；The utility model technical characterstic：1）Rear class " standby circuit for detecting " use non-active operation mode, avoid since it is desired that
Auxiliary winding power supply and the power consumption brought increases problem；2）Prime uses the operating mode of " timer "+" timers trigger circuit ",
In a manner of the non-active operation for coordinating rear class.This circuit is particularly suitable for applying in power supply adaptor and charger, while
It can apply and treat machine management system comprising electrical equipment class, such as the housed devices such as unmanned plane, sweeper.
Description of the drawings
Fig. 1 is the circuit diagram of energy-saving electronic control circuit.
Specific embodiment
The utility model is described in further details below with reference to the drawings and specific embodiments：
Embodiment 1：As shown in Figure 1, a kind of energy-saving electronic control circuit, including transformer, standby circuit for detecting, standby
Trigger circuit, timers trigger circuit and electronic switch trigger circuit；
Electronic switch trigger circuit connects with the primary side of transformer, and the secondary of transformer is used to connect load；
Metal-oxide-semiconductor is serially connected in the PWM circuits of transformer primary side；The gate pole of metal-oxide-semiconductor connects the signal of the PWM drive circuit
Output terminal；
Standby circuit for detecting includes sampling resistor R11 and comparator；The power supply that sampling resistor is serially connected in transformer secondary is returned
Lu Zhong, the voltage signal on sampling resistor connect the first input end of comparator；Second input termination reference voltage of comparator；Than
Output terminal compared with device receives machine trigger circuit；Standby trigger circuit is serially connected in the main circuit of feedback circuit, for controlling main electricity
The break-make on road.
Standby circuit for detecting further includes to generate the regulator circuit of the reference voltage.Using TL431 devices, i.e. U7.
Comparator uses operational amplifier.
The output terminal of comparator is connected by photoelectrical coupler with the control terminal of timing trigger circuit.
Time-delay trigger is also associated between the control terminal of photoelectrical coupler and electronic switch trigger circuit.
Power switching devices are relay, and the normal open switch of relay is serially connected in the main circuit of power supply circuit, relay
Coil first termination direct current supply voltage VCC, the coil of relay second termination time-delay trigger output terminal.
The second end of the coil of relay is grounded through thyristor；The plus earth of thyristor, the cathode of thyristor succeed electricity
The second end of the coil of device, the output terminal of the triggering termination time-delay trigger of thyristor.
The implementation process of circuit work：
1st, the normal output service stage of product：In the case that DC power supply output has carry load work, including comparator U5
With the peripheral cells such as resistance R11, form one passive " standby circuit for detecting ", output signal by optical coupling isolator effect with
" delay trigger circuit " module U4 triggers " delayer " module U3 and resets, " trigger " module U1 is made to export high level after processing
Signal, it is final to keep " electronic switch trigger circuit（Or electronic switching circuit）" in the conduction state.In this stage, " PWM
IC " enters normal operating conditions, the normal energy conversion process of " PWM translation circuits " is also ensured that, to keep DC power supply
Stablize output.
2nd, conversely, the off-phases of product：It is in when DC power supply exports under unloaded operation state, including comparator U5 and electricity
Hinder passive " the standby circuit for detecting " of the peripheral cells such as R11 composition, stop acting on optical coupling isolator, by with " Time-delayed trigger
The processing signal of circuit " module U4 allows " delayer " module U3 to start timing, and makes " trigger " module U1 output low level letters
Number, " electronic switch trigger circuit " is off state at this time, until before delay terminates.
3rd, the standby phase of product：When " electronic switch trigger circuit " is off in state procedure, " delayer " module
U3 starts timing, and after a time delay count, " delayer " module U3 provides a trigger signal, makes that " electronic switch touches
Power Generation Road " enters a pulse conducting state, allows " PWM IC " of short duration into normal operating conditions, so that " PWM is converted
Briefly normal energy converts circuit ", to meet the standby judgement needs of " standby circuit for detecting ".This process constantly cycle until
Standby end, i.e. output terminal have load or connection equipment belt to carry.
Claims (7)
1. a kind of energy-saving electronic control circuit, which is characterized in that including transformer, standby circuit for detecting, standby trigger circuit
With electronic switch trigger circuit；
Electronic switch trigger circuit connects with the primary side of transformer, and the secondary of transformer is used to connect load；
Metal-oxide-semiconductor is serially connected in the PWM circuits of transformer primary side；The gate pole of metal-oxide-semiconductor connects the signal output of the PWM drive circuit
End；
Standby circuit for detecting includes sampling resistor（R11）And comparator；Sampling resistor is serially connected in the current supply circuit of transformer secondary
In, the voltage signal on sampling resistor connects the first input end of comparator；Second input termination reference voltage of comparator；Compare
The output terminal reception machine trigger circuit of device；Standby trigger circuit is serially connected in the main circuit of feedback circuit, for controlling main circuit
Break-make.
2. energy-saving electronic control circuit according to claim 1, which is characterized in that standby circuit for detecting, which further includes, to be used for
Generate the regulator circuit of the reference voltage.
3. energy-saving electronic control circuit according to claim 2, which is characterized in that comparator uses operational amplifier.
4. energy-saving electronic control circuit according to claim 3, which is characterized in that the output terminal of comparator passes through photoelectricity
Coupler connects with the control terminal of power switching devices.
5. energy-saving electronic control circuit according to claim 4, which is characterized in that photoelectrical coupler and power switching device
Time-delay trigger is also associated between the control terminal of part.
6. according to claim 1-5 any one of them energy-saving electronic control circuits, which is characterized in that power switching devices are
Relay, the normal open switch of relay are serially connected in the main circuit of power supply circuit, and the first termination direct current of the coil of relay supplies
Piezoelectric voltage, the output terminal of the second termination time-delay trigger of the coil of relay.
7. energy-saving electronic control circuit according to claim 6, which is characterized in that the second end warp of the coil of relay
Thyristor is grounded；The plus earth of thyristor, the second end of the coil of the cathode contact relay of thyristor, the triggering end of thyristor
Connect the output terminal of time-delay trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457407.2U CN207380472U (en) | 2017-11-03 | 2017-11-03 | A kind of energy-saving electronic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457407.2U CN207380472U (en) | 2017-11-03 | 2017-11-03 | A kind of energy-saving electronic control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207380472U true CN207380472U (en) | 2018-05-18 |
Family
ID=62334092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457407.2U Active CN207380472U (en) | 2017-11-03 | 2017-11-03 | A kind of energy-saving electronic control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207380472U (en) |
-
2017
- 2017-11-03 CN CN201721457407.2U patent/CN207380472U/en active Active
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