700w-power-amplifier-with-2sc5200.html
700W Amplifier. Adjusting the amplifier power to 700W appears straightforward, yet it is essential to consider the adjustment of the driving transistors and the frequency offset engagement. It is necessary to modify the current protection circuit that safeguards the final transistors, ensuring they remain within their Safe Operating Area (SOAR) characteristics. Initially, all required resistors must be evaluated and measured to confirm the accuracy of the calculations, which yielded satisfactory results. Peripheral modifications are needed to enable the amplifier to consistently deliver power.
First, the 2.2kΩ resistors in series with the LEDs should be replaced with higher wattage Zener resistors, ideally rated at 1/2W, given the power loss at approximately 80V, which is around 1W. Consequently, a 1.2kΩ resistor was exchanged for a 620Ω resistor, effectively doubling the gain, leading to an overall amplifier gain of 40, with a sufficient excitation limit of 1V RMS. The original transistors were substituted with more robust MJE15032/33 models, as the previous KF467/470 transistors could only handle a maximum current of 20mA. The same transistors are utilized in the output stages as in the exciter output stages.
The number of transistor pairs has been increased to eight. To compensate for the excitation level, a capacitor value adjustment from 10pF to 47pF, along with a 22kΩ resistor, was implemented. This adjustment resulted in a slight gradual response from the amplifier, but it did not adversely affect the overall performance metrics. The power is appropriately tuned for the terminal transistors 2SA1943 and 2SC5200, ensuring stable operation without fluctuations at the rising and falling edges of the signal.
The final adjustment pertains to the current protection of the terminal transistors. The SOAR characteristics indicate that the maximum permissible current for the transistors is ideally around 1.5A for efficient cooling, thus the current protection is set to 12A, single-ended. The short-circuit current is approximately 6A, translating to about 0.75A per transistor, which remains well within the SOAR limits.
The mechanical design of the amplifier is relatively straightforward, with the transistors mounted on two cooling profiles measuring 66mm in height and 44mm in width, with an overall length of 260mm. The transistors are oriented against each other to facilitate cooling. The heat sinks are attached using nylon supports, allowing for the mounting of transistors without washers, thereby enhancing thermal conductivity. The amplifier's PCB is positioned at the top of the cooling tunnel, with the transistors soldered to the underside of the board.
This description outlines the construction and operation of a 700W Power Amplifier utilizing 2SC5200 and 2SA1943 transistors, emphasizing the importance of careful component selection and configuration for optimal performance.700W Amplifier Adjust the amplifier power 700W looks calm, but we requirement not put out of your mind to the adjustment happening forcing transistors, the whole relating to-engagement of frequency offset. It is compulsory to change the current insurance rule which serves to guard the final transistors. Their tendency to happen allowable to keep t he transistors in the SOAR characteristics. primary it was needed to evaluate all the necessary resistors and subsequently measured to verify the accuracy of the calculations, it is managed with satisfactory results. Peripheral changes required in support of it to be there able to consistently amplifier to supply power.
- First you need to restore the 2k2 resistors stylish string with the LEDs on ZenerovG½mi resistors with upper wattage. be enough 1/2W resistors, power loss next to 80V +-based 1W. - therefore was traded 1k2 resistor in the pointer resistor by the side of 620 ohms. Which is the initial reap has doubled, so at this point is the overall gain amplifier 40 and the limit excitation is sufficient to 1V rms.
- P ™edbudi i transistors were replaced by stronger MJE15032/33 since KF467/470 are permitted satellite dish current 20mA - by the side of the exciter output stages are used the same transistors for example the output stage. - add up to of terminals of transistors has been increased to eight pairs - It had to occur to compensate designed for the excitation level by calculation a capacitor 10pF to 47pF + 22K appendage.
This led to a slight "gradual" amplifiers, but this did not affect the ensuing parameters. This power is tuned correctly in support of this type of terminal transistors 2SA1943/2SC5200. With with the purpose of it is a least assessment next to which the amplifier operates stably exclusive of pass by the side of the rising and falling edges of the genuine. - The ultimate adjustment, the adjustment terminal current protection transistor. The SOAR transistor characteristics shows with the intention of the most allowable radio dish current once the voltage of 1.
5 A is ideal in favor of cooling, so it`s essentially not as much of. Therefore, the current protection is customary to 12A, single-arm. This impersonate protection SOAR transistor characteristics. curt-circuit current is regarding 6 A which is about 075A for every transistor. This is far beneath the SOAR characteristics. The mechanical design is relatively clear-cut, the transistors are placed on the two cooling profiles with a height of 66 mm, width 44mm, overall part 260mm. They are twisted contrary to each one other in this way, from the cooling tunnel. Coolers are attaching the nylon aid which allows the compilation of transistors exclusive of washers, and thus better conveying tepla.
DPS amplifiernext to the top of the tunnel and the transistors are soldered from the underside of PCB. You are reading the article about 700W Power Amplifier with 2SC5200, 2SA1943 and you can find articles 700W Power Amplifier with 2SC5200, 2SA1943 this the url.
You may distribute or copy articles 700W Power Amplifier with 2SC5200, 2SA1943 this is beneficial if you or your friends, but do not forget to include the link source. 🔗 External reference
First, the 2.2kΩ resistors in series with the LEDs should be replaced with higher wattage Zener resistors, ideally rated at 1/2W, given the power loss at approximately 80V, which is around 1W. Consequently, a 1.2kΩ resistor was exchanged for a 620Ω resistor, effectively doubling the gain, leading to an overall amplifier gain of 40, with a sufficient excitation limit of 1V RMS. The original transistors were substituted with more robust MJE15032/33 models, as the previous KF467/470 transistors could only handle a maximum current of 20mA. The same transistors are utilized in the output stages as in the exciter output stages.
The number of transistor pairs has been increased to eight. To compensate for the excitation level, a capacitor value adjustment from 10pF to 47pF, along with a 22kΩ resistor, was implemented. This adjustment resulted in a slight gradual response from the amplifier, but it did not adversely affect the overall performance metrics. The power is appropriately tuned for the terminal transistors 2SA1943 and 2SC5200, ensuring stable operation without fluctuations at the rising and falling edges of the signal.
The final adjustment pertains to the current protection of the terminal transistors. The SOAR characteristics indicate that the maximum permissible current for the transistors is ideally around 1.5A for efficient cooling, thus the current protection is set to 12A, single-ended. The short-circuit current is approximately 6A, translating to about 0.75A per transistor, which remains well within the SOAR limits.
The mechanical design of the amplifier is relatively straightforward, with the transistors mounted on two cooling profiles measuring 66mm in height and 44mm in width, with an overall length of 260mm. The transistors are oriented against each other to facilitate cooling. The heat sinks are attached using nylon supports, allowing for the mounting of transistors without washers, thereby enhancing thermal conductivity. The amplifier's PCB is positioned at the top of the cooling tunnel, with the transistors soldered to the underside of the board.
This description outlines the construction and operation of a 700W Power Amplifier utilizing 2SC5200 and 2SA1943 transistors, emphasizing the importance of careful component selection and configuration for optimal performance.700W Amplifier Adjust the amplifier power 700W looks calm, but we requirement not put out of your mind to the adjustment happening forcing transistors, the whole relating to-engagement of frequency offset. It is compulsory to change the current insurance rule which serves to guard the final transistors. Their tendency to happen allowable to keep t he transistors in the SOAR characteristics. primary it was needed to evaluate all the necessary resistors and subsequently measured to verify the accuracy of the calculations, it is managed with satisfactory results. Peripheral changes required in support of it to be there able to consistently amplifier to supply power.
- First you need to restore the 2k2 resistors stylish string with the LEDs on ZenerovG½mi resistors with upper wattage. be enough 1/2W resistors, power loss next to 80V +-based 1W. - therefore was traded 1k2 resistor in the pointer resistor by the side of 620 ohms. Which is the initial reap has doubled, so at this point is the overall gain amplifier 40 and the limit excitation is sufficient to 1V rms.
- P ™edbudi i transistors were replaced by stronger MJE15032/33 since KF467/470 are permitted satellite dish current 20mA - by the side of the exciter output stages are used the same transistors for example the output stage. - add up to of terminals of transistors has been increased to eight pairs - It had to occur to compensate designed for the excitation level by calculation a capacitor 10pF to 47pF + 22K appendage.
This led to a slight "gradual" amplifiers, but this did not affect the ensuing parameters. This power is tuned correctly in support of this type of terminal transistors 2SA1943/2SC5200. With with the purpose of it is a least assessment next to which the amplifier operates stably exclusive of pass by the side of the rising and falling edges of the genuine. - The ultimate adjustment, the adjustment terminal current protection transistor. The SOAR transistor characteristics shows with the intention of the most allowable radio dish current once the voltage of 1.
5 A is ideal in favor of cooling, so it`s essentially not as much of. Therefore, the current protection is customary to 12A, single-arm. This impersonate protection SOAR transistor characteristics. curt-circuit current is regarding 6 A which is about 075A for every transistor. This is far beneath the SOAR characteristics. The mechanical design is relatively clear-cut, the transistors are placed on the two cooling profiles with a height of 66 mm, width 44mm, overall part 260mm. They are twisted contrary to each one other in this way, from the cooling tunnel. Coolers are attaching the nylon aid which allows the compilation of transistors exclusive of washers, and thus better conveying tepla.
DPS amplifiernext to the top of the tunnel and the transistors are soldered from the underside of PCB. You are reading the article about 700W Power Amplifier with 2SC5200, 2SA1943 and you can find articles 700W Power Amplifier with 2SC5200, 2SA1943 this the url.
You may distribute or copy articles 700W Power Amplifier with 2SC5200, 2SA1943 this is beneficial if you or your friends, but do not forget to include the link source. 🔗 External reference