Published:2011/4/18 8:57:00 Author:Nicole | Keyword: dimming light
SC3071X is produced by Hangzhou Silan Microelectronics Co. Ltd. compared to SC3071, it has one more mode to select, so SC3071X also can choose on or off switch 2 steps control, besides controlling low brightness, middle brightness, most brightness, turn-off four steps. (View)
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Published:2011/4/18 9:04:00 Author:Nicole | Keyword: dimming light
The figure is as shown, it is a touch stepping dimming table light adopts SC3071 IC, when you use it, just to touch M repeatedly, then the brightness of light will cyclic change with low brightness, middle brightness, most brightness, turn-off four steps, when it is most brightness, the conduction angle of SCR VTH is 115°. (View)
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Published:2011/4/18 8:44:00 Author:Nicole | Keyword: color lamp
In figure, the work frequency of LT156 internal oscillator is determined by external connected RC component RP and C2. To increase the value of KP or C2, the oscillation frequency will slow down, on the contrary, it will speed up. (View)
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Published:2011/4/18 8:34:00 Author:Nicole | Keyword: stepless dimming light
The figure is as shown, it is a touch stepless dimming table light circuit adopts LS7232 integrated circuit, LS7232 is a touch dimming special IC produced by US LSI Company, S567 and 5G7232 have the same functions with it, they can be exchanged to use directly. (View)
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Published:2011/4/18 8:09:00 Author:Nicole | Keyword: audio voltage control, color lamp, firecracker
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Published:2011/4/18 8:07:00 Author:Nicole | Keyword: audio voltage control, color lamp
The circuit is as shown. It consists of audio pich-up and amplifier circuit, light control circuit and AC depressurization rectifier circuit. BM is CRZ2 electret condenser microphone, it can change picked up sound singal into electrical signal, it is amplified by VT1 amplifier then added to emitter follower VT2, and added to input UIN terminal 5-foot of LC181 rectifier amplifier, to voltage control and modulate the internal VCO. (View)
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Published:2011/4/18 7:50:00 Author:Nicole | Keyword: cala OK, audio voltage control, color lamp
The circuit is as shown. It is composed of acoustic pick-up and impedance transformer, direct coupled double tube amplifier, color lamp controllerand DC power voltage. (View)
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Published:2011/4/18 7:44:00 Author:Nicole | Keyword: color lamp, audio, control chip
This cirucit is used to control high power AC color lamp. (View)
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Published:2011/4/18 7:40:00 Author:Nicole | Keyword: audio, voltage control, christmas tree, color lamp
The circuit is as shown. It consists of pick up singal amplifier, LC182 light control cirucit, power drive switch circuit, multi colors LED and AC depressurization rectifier circuit. (View)
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Published:2011/4/18 7:34:00 Author:Nicole | Keyword: LED, fuse indicator
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Published:2011/4/18 7:28:00 Author:Nicole | Keyword: metal halide lamp, HID light
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Published:2011/4/18 7:26:00 Author:Nicole | Keyword: color lamp
The circuit is as shown, it is composed of light control circuit, firecracker phonation circuit and AC depressurization rectifier circuit. This circuit has few components, much color lamp transformation, good sound and light effect. (View)
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Published:2011/4/18 7:14:00 Author:Nicole | Keyword: audio power, display
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Published:2011/4/18 7:12:00 Author:Nicole | Keyword: audio, color lamp
This circuit can combine and arrange many colors LED with a method, it can reach a variety of color flashing effects such as rotation, rotation, flowing water, linear and radial cycle. (View)
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Published:2011/4/18 4:40:00 Author:Nicole | Keyword: intelligent charging, Ni-Cd battery, charge control
In this circuit, the best number of battery are 2~6. The battery testing input sampling resistance is CR1=4.3·(N-2)kΩ(N is the number of battery), if there are only two batteries, then CR1=0, it means this circuit at least needs two battery to charge in serie. (View)
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Published:2011/4/18 1:15:00 Author:Nicole | Keyword: Panasonic, split air conditioner, MCU, temperature detection loop
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Published:2011/4/18 1:08:00 Author:Nicole | Keyword: AC motor, DC motor, rotational speed, power
In AC/DC general motor(commutator motor), excitation winding in series with armature winding, so in AC power supply, the field direction and armature current direction is changed synchronously, so the rotation direction is not changed. Figure (a) shows its typical characteristic curve, figure (b) shows the relationship curve between motor rotational speed and conduction angle, figure (c) is steady speed circuit. The control angle is relative to the voltage on RC link in trigger loop, this voltage is the difference between applied voltage and armature voltage, so it has the function of negative feedback stabilizes rotational speed. (View)
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Published:2011/4/18 2:00:00 Author:Nicole | Keyword: relative humidity, LED display
The circuit is as shown. It consists of humidity sensor, LED point display circuit, language sounder circuit, audio power amplifier circuit and so on. It is used in greenhouse, special raising, seedling and other cultivation occasion, it has the function of LED display intuitively, and it will call when it goes beyond the preset humidity. (View)
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Published:2011/4/18 2:16:00 Author:Nicole | Keyword: temperature control, acoustics report calling
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Published:2011/4/18 9:04:00 Author:Ecco | Keyword: Lide , magnetic pulse , therapeutic apparatus
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