Published:2011/5/11 4:02:00 Author:Rebekka | Keyword: Common adder
Common adder(741 1458) circuit diagram is shown as above.
Figure (a) is the inverting addition circuit, the input-output relationship is: Vo =- (Vil + Vi2).When you need the same addition, you can use the circuit shown in figure (b), the input-output relationship is: Vo = Vil + Vi2. (View)
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Published:2011/5/11 4:08:00 Author:Rebekka | Keyword: High voltage , high exchange rate, power amplifier
High voltage high exchange rate power amplifier circuit composed of MOSFET is shown as above.
Output stage uses power MOSFET tube. It can improve the frequency characteristics and play a protective role when it is abnormal loads. The circuit is comosed of input stage, voltage amplifier stage, current limit level and the output stage 4 parts. (View)
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Published:2011/5/11 1:52:00 Author:Rebekka | Keyword: Radio control car receiver
Here is the diagram of radio controlcarreceiverprinciple circuit.
Notes:The choice of transistor Q1 and the bias resistorQ1 1815 9018R1 240K 100K
The choice of the high-frequency parameters partFrequency C1 C2 L227M 35P 30P 10uH35M 30P 30P 8.2uH40M 30P 20P 5.1uH49M 20P 15P 3.3uH
The production method of L1In the diameter of 5mm, use Enameled wire diameter of 0.5 to intensively wound the skeleton with a core. Make appropriate changes according to the frequency.
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Published:2011/5/11 1:36:00 Author:Rebekka | Keyword: Radio remote control car
Here is the diagram of Radio remote control car sending schematic. (View)
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Published:2011/5/11 1:30:00 Author:Rebekka | Keyword: Electric mousetrap
Here is the diagram of Electric mousetrap circuit. (View)
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Published:2011/5/11 3:21:00 Author:Rebekka | Keyword: recording and sending out
The features of SLA4100 audio power integrated amplifier are: Power supply voltage is low, the adaptability of power falling is strong, low noise, high fidelity characteristics etc. It is suitable for FM, AM radio cassette recorders, record players and power amplifier. The recording and playing circuit composed of SLA4100 is shown as above. (View)
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Published:2011/5/11 3:39:00 Author:Rebekka | Keyword: High-gain amplifier
High-gain amplifier circuit composed of CW117, CW217 andCW317 is shown as above. (View)
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Published:2011/5/11 3:51:00 Author:Rebekka | Keyword: Gateball competition timer
The diagram of gateball competition timer circuit. (View)
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Published:2011/5/11 4:18:00 Author:Rebekka | Keyword: Basic in-phase amplified
Basic relations:
R1-The input resistance operational amplifierR2-The output resistance operational amplifierRV-Operational amplifier open-loop amplification
Basic in-phase amplified circuit diagram composed of μA709 is shown as above.
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Published:2011/5/11 3:48:00 Author:Rebekka | Keyword: protection measures , Operational amplifier, puncture input
The protection circuit of internal protective measures integrated chip (such as the 741 series and the type of integrated FET input op amp) is shown as above. Its limiting current resistor can be up to 10kΩ.
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Published:2011/5/11 1:35:00 Author:Rebekka | Keyword: FM transmitter
Here is the diagram of FM transmitter circuit. (View)
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Published:2011/5/11 1:34:00 Author:Rebekka | Keyword: FM transmitter
Here is the diagram of BH1417 FM transmitter circuit. (View)
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Published:2011/5/11 1:27:00 Author:Rebekka | Keyword: FM transmitter
Here is the diagram of 88-108MHz FM transmitter circuit. (View)
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Published:2011/5/11 4:40:00 Author:Rebekka | Keyword: Portable digital amplifier , PWM D type amplification
Portable digital amplifier PWM D type amplification circuit diagram is shown as above. (View)
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Published:2011/5/11 3:03:00 Author:Rebekka | Keyword: power amplifier
Power amplifier circuit composed of HIP4080A is shown as above. (View)
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Published:2011/5/11 4:25:00 Author:Rebekka | Keyword: Power capacitor compensation protection
The circuit is shown in the figure. It is used in power supply circuit. It can cut off the power when it is overvoltage or power-off phase. So that the power capacitor can be protected. (View)
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Published:2011/5/11 4:36:00 Author:Rebekka | Keyword: Overheat protection system
The figure shows the overheat protection system circuit composed of MIC2951. The temperature threshold value of circuit is set by the adjustment R2. (View)
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Published:2011/5/11 4:27:00 Author:Rebekka | Keyword: Car backing-up anticollision device
Here is the diagram of car backing-up anticollision device circuit. (View)
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Published:2011/5/11 2:48:00 Author:Rebekka | Keyword: switch power supply
Here is the diagram of LWT2005 type ATX switch power supply circuit.
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Published:2011/5/11 2:43:00 Author:Rebekka | Keyword: switching power supply
Here is the diagram of 200W ATX switching power supply circuit. (View)
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