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zBot :10-A Power Stage for DC Motor Circuit Diagram . If you look at the chassis of the zBot vehicle1, you’ll find two parts requiring intelligent control: the steering servo and the DC motor . The so called H-bridge is the normal circuit for electronic control of revolution speed and direction. The DC motor of a Tamiya car is powerful enough to propel zBot at up to 20 miles per hour. . The motor then consumes more than 10 A, so we choose high-current power MOSFETs for the driver stage. There are lots of different devices to choose from. The MOSFET we require has to supply the maximum motor current and, importantly, it has to be switched with gate voltages of about 5 V. In this case, the microcontroller switches the power stage (‘low side’) directly. For high side driving level shifters are necessary. The schematic of the H-bridge power stage shows a few inverters, NAND gates and two tri-stateable drivers. These logic functions are very important as the easier way, i.e.., directly con...

The SCC2 is a solar charge controller, it’s function is to regulate the power flowing from a photovoltaic panel into a rechargeable battery. It features easy setup with one potentiometer for the float voltage adjustment, an equalize function for periodic overcharging, and automatic temperature compensation for better charging over a range of temperatures. 10 Amp Solar Charge Controller Circuit Diagram With Parts List The goal of the circuit design was to make a charge controller with analog simplicity, high efficiency, and reliability. A medium power solar system can be built with a 12V solar panel up to 10 amps, the SCC2, and a lead acid or other rechargeable up to a few hundred amp hour capacity. The SCC2 can be operated at battery voltages other than 12V, it can work at 6V and 24V by changing a few parts. Operation at voltages between 6V and 24V is also possible. Specifications Maximum solar panel current: 10 Amps Night time battery drain current: approximately 1ma Nominal battery v...

The post explains a 10 km long range transmitter circuit using ordinary components .PCB fabrication also explained. With the increased activity on 2 metres, some who may have contemplated working this band, have possibly been deterred by the cost of a " black box " and the uncertainty of modifying commercial equipment. With this situation in mind, the Author has , designed a simple , easily-built 2m f.m. transmitter, that can be assembled by anyone who can use a soldering iron and small tools whilst possessing a reasonable amount of patience. The completed unit will perform well, being as versatile as the constructor ultimately wishes to make it. An r.f. output of around 1 watts can be expected if the unit is constructed as described but power far in excess of this may be, achieved if the design is regarded as a working basis and the p.a. stage is developed. Construction Procedures for the proposed long range transmitter circuit A simple printed circuit technique is employed...

TA7200P has a 3,3 W output and the equation of TA7204P has a power output of 4,2 W , using the circuit above , in  both ic can have 10 watts of output power amplfier , but the quality of each ic remains different. Both ic manufactered by TOSHIBA. Part List : Resistor   = 100K x 2, 820R Capacitor = 1uF , 10uF , 100uF x 2, 4u7F , 820pF , 15 pF , 47uF, 470 uF. IC            = TA7200P / TA7204P Technical information : Max. Voltage = 20 Volt DC Min. Voltage = 10 Volt DC Max. Output = 10 Watt Approx. RL  = 4 - 8 Ohm Approx. Ft   = 30Hz - 18KHz

One of the most feature packed devices on the market at the moment is no doubt the Samsung Galaxy S3. However thanks to the fact that it comes with so many features, it can be possible to miss some. So here we show you 10 the features that you might not know existed on your Samsung Galaxy S3. Samsung Galaxy S3 hidden features roundup (Part 4) If you chose the Samsung Galaxy S3 due to its large display and you are not technically minded then you might be happy to know you can choose to activate an easy UI mode on your device. This means that you will have large pre-set widgets and a simplified setup. All you have to do to get the mode is go into settings and choose the home screen mode. When you are in contacts you can easily call or text people by swiping. All you have to do is swipe left to right if you want to call someone or right to left if you want to text someone. If you want to save battery you can use the power saving feature. This mode will change many aspects on your phone, i...

For a collector follower with emitter resistor, you’ll often find that the gain per stage is no more than 10 to 50 times. The gain increases when the emitter resistor is omitted. Unfortunately, the distortion also increases. With a ubiquitous transistor such as the BC547B, the gain of the transistor is roughly equal to 40 times the collector current (Ic), provided the collector current is less than a few milliamps. This value is in theory equal to the expression q/KT, where q is the charge of the electron, K is Boltzmann’s constant and T is the temperature in Kelvin. For simplicity, and assuming room temperature, we round this value to 40. For a single stage amplifier circuit with grounded emitter it holds that the gain Uout /Uin (for AC voltage) is in theory equal to SRc. As we observed before, the slope S is about 40Ic. From this follows that the gain is approximately equal to 40I cRc. What does this mean? In the first instance this leads to a very practical rule of thumb: that gain ...

Gambar Skema Rangkain Audio Amplifier 10 Watt This schematic is a 10 watt amplifier for audio frequencies (approx. 50Hz-20kHz). The circuit is extremely simple, comprised of a total of only 18 components, 4 of which are transistors. Of the transistors used, 1 is a PNP (2N3906) , and 3 are NPN (2n697, 2 x NJ480). Source : www.electrokits.com

Description  For a collector follower with emitter resistor, you’ll often find that the gain per stage is no more than 10 to 50 times. The gain increases when the emitter resistor is omitted. Unfortunately, the distortion also increases. With a ubiquitous transistor such as the BC547B, the gain of the transistor is roughly equal to 40 times the collector current (Ic), provided the collector current is less than a few milliamps. This value is in theory equal to the expression q/KT, where q is the charge of the electron, K is Boltzmann’s constant and T is the temperature in Kelvin. For simplicity, and assuming room temperature, we round this value to 40. For a single stage amplifier circuit with grounded emitter it holds that the gain Uout /Uin (for AC voltage) is in theory equal to SRc. As we observed before, the slope S is about 40Ic. From this follows that the gain is approximately equal to 40I cRc. What does this mean? In the first instance this leads to a very practical rule of ...