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1. 호칭 인덕턴스 값
Measure the 인덕턴스 값 at a frequency of 100KHz. The test frequency is not fixed, and the test frequency of the nominal 인덕턴스 값 of different products is also different, and the manufacturer will indicate it in the product catalog.
2. 자기 공명 주파수
Depending on the frequency at which the 인덕턴스 and 기생 커패시턴스 resonate, the critical frequency that acts as an inductor. The impedance of an ideal inductor increases as the frequency increases. However, due to the existence of 기생 커패시턴스 and parasitic resistance, the actual 인덕턴스 is inductive at a certain frequency, and capacitive when it exceeds a certain frequency. On the contrary, the impedance decreases with the increase of frequency. This frequency is the critical frequency.
3. DC 저항
The resistance when applying direct current is mainly the resistance of the winding. Due to this impedance 값, power loss occurs due to heat generation, so the smaller the DC impedance, the less the loss. However, there is a trade-off relationship between reducing Rdc, DC superposition characteristics, and size reduction. It is sufficient to select a product with a smaller Rdc from among the above-mentioned inductors that satisfy the necessary characteristics such as 인덕턴스 and rated current.
4. 정격 전류
The rated current specifies the upper limit of the current 값, and when the passing DC current exceeds this 값, the quality cannot be guaranteed. There are two rated currents for power inductors, one is the allowable current for DC overlap, and the other is the allowable current for temperature rise. Each has important meanings, and technical specifications are often recorded separately. If only one rated current is specified, it is generally specified according to the smaller of the DC overlap and the temperature rise.
5. DC 오버랩 허용 전류
When a current flows through an inductor, the magnetic saturation of the magnetic material occurs, and the 인덕턴스 decreases. This characteristic is called the DC superposition characteristic. The DC superimposed allowable current, also known as the saturation allowable current, specifies the current 값 when the 인덕턴스 decreases by a certain percentage relative to the initial characteristics of the non-superimposed current, generally by 10% to 30%, depending on the product specification.
6. 온도상승 허용전류
The rated current is specified with the heating of the components as the index. Use beyond this range will cause damage to the components or failure of the components. Generally, it is specified according to the current 값 at which the temperature rises by 20~40°C (depending on the product specification) when a DC current is applied.
맥탑컴퍼니 처음 2005에 설립되었습니다. 기술 기업의 다양한 유형의 자기 부품 제품의 전문 R & D 설계, 제조 및 판매입니다.
에 오신 것을 환영합니다 맥탑, 우리는 당신이 다른 놀라움을 얻을 것이라고 믿습니다
Measure the 인덕턴스 값 at a frequency of 100KHz. The test frequency is not fixed, and the test frequency of the nominal 인덕턴스 값 of different products is also different, and the manufacturer will indicate it in the product catalog.
2. 자기 공명 주파수
Depending on the frequency at which the 인덕턴스 and 기생 커패시턴스 resonate, the critical frequency that acts as an inductor. The impedance of an ideal inductor increases as the frequency increases. However, due to the existence of 기생 커패시턴스 and parasitic resistance, the actual 인덕턴스 is inductive at a certain frequency, and capacitive when it exceeds a certain frequency. On the contrary, the impedance decreases with the increase of frequency. This frequency is the critical frequency.
3. DC 저항
The resistance when applying direct current is mainly the resistance of the winding. Due to this impedance 값, power loss occurs due to heat generation, so the smaller the DC impedance, the less the loss. However, there is a trade-off relationship between reducing Rdc, DC superposition characteristics, and size reduction. It is sufficient to select a product with a smaller Rdc from among the above-mentioned inductors that satisfy the necessary characteristics such as 인덕턴스 and rated current.
4. 정격 전류
The rated current specifies the upper limit of the current 값, and when the passing DC current exceeds this 값, the quality cannot be guaranteed. There are two rated currents for power inductors, one is the allowable current for DC overlap, and the other is the allowable current for temperature rise. Each has important meanings, and technical specifications are often recorded separately. If only one rated current is specified, it is generally specified according to the smaller of the DC overlap and the temperature rise.
5. DC 오버랩 허용 전류
When a current flows through an inductor, the magnetic saturation of the magnetic material occurs, and the 인덕턴스 decreases. This characteristic is called the DC superposition characteristic. The DC superimposed allowable current, also known as the saturation allowable current, specifies the current 값 when the 인덕턴스 decreases by a certain percentage relative to the initial characteristics of the non-superimposed current, generally by 10% to 30%, depending on the product specification.
6. 온도상승 허용전류
The rated current is specified with the heating of the components as the index. Use beyond this range will cause damage to the components or failure of the components. Generally, it is specified according to the current 값 at which the temperature rises by 20~40°C (depending on the product specification) when a DC current is applied.
맥탑컴퍼니 처음 2005에 설립되었습니다. 기술 기업의 다양한 유형의 자기 부품 제품의 전문 R & D 설계, 제조 및 판매입니다.
에 오신 것을 환영합니다 맥탑, 우리는 당신이 다른 놀라움을 얻을 것이라고 믿습니다
