Circuit connection in building model
Lighting is one aspect of the architectural model making is critical, the light can not only improve the look of a model, but also a more clear and vivid explanation of the content of the model.Is in the process of building model making one aspect can not be ignored.Building model of light comes from electricity.So, how to make building model of circuit connection success?What is the mode building model of circuit connection?
Building model of circuit connection are:
A, manual control circuit, the principle of this circuit is very simple, as the power to switch to implement luminescence light source control.When use, you need a bright, according to a certain control switch.In general, there are two shining light source's connection.
1, the parallel circuit in parallel: refers to the power circuit of the parallel connected, is suitable for the rated voltage of high power devices, usually 220 v alternating current (ac) devices used in parallel circuit.This circuit has the advantage of low voltage, safe and reliable, when a group of light sources are damaged, does not affect the normal use of all the other light source.Defect is big electric current, which requires a transformer, so the cost is high.
2, series circuit: refers to connect electricity equipment one by one in order of circuit, suitable for low voltage rating of power equipment such as light-emitting diodes (leds), usually the 36 v transformer dc equipment using the series circuit, the circuit is low cost, simple circuit, easy connection, but each group of illuminant series voltage of 220 v, so the insulation of the circuit problem more difficult, such as a light source in a certain damage, all the group is not bright.
Second, semi-automatic circuit: large models in use need to guests, the audience to do in detail.Then use the narrator make some of text interpretation in the hands of a great, can make the sand table model to shine.This circuit as long as the narrator encounters in the model on interpretation of the sticks with good contact in advance, time delay and control circuit to work.Instructions issued by the control circuits to implement circuit work immediately, display circuit and at the same time.When the narrator has tuned circuit control of time to complete, also the power circuit, back to the state before the next cycle.This circuit has many changes, such as in the interpretation of the rods recently installed a small light source, the need to portion of the model show that when the photosensitive resistance value changes, control circuit which begin to work.Also can use magnet and reed is made together with the control circuit, show a variety of light effect.
