công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
SM6702-30HA bảng dữ liệu(PDF) 5 Page - Nippon Precision Circuits Inc |
|
SM6702-30HA bảng dữ liệu(HTML) 5 Page - Nippon Precision Circuits Inc |
5 / 10 page SM6702 series NIPPON PRECISION CIRCUITS—5 FUNCTIONAL DESCRIPTION Step-up Principle The SM6702 series use a transistor to switch the input supply in a non-isolated chopper switching regulator configuration. The figure below shows the basic step-up switching regulator circuit. If the transistor is ON for an interval tON and then instantly turned OFF, the energy stored in the coil L during the interval tON generates a voltage VL across the coil. This voltage is superimposed on the input voltage such that the peak voltage reaches VIN + VL which forces the diode D to conduct and release the stored energy into the output. During normal operation, the above switching occurs repeatedly at a frequency controlled by an oscillator (which can change depending on the input and output load conditions), generating a square wave output which is then smoothed by the output capacitor C. Thus the output voltage (VOUT > VIN) has been stepped up. PFM Control In SM6702 series, the LX transistor ON interval is fixed, and the OFF interval varies in response to the input voltage and load changes. Thus the resulting switching cycle frequency varies, called pulse frequency modula- tion. L VIN VOUT D Tr GND C |
Số phần tương tự - SM6702-30HA |
|
Mô tả tương tự - SM6702-30HA |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |