Summary:
The TOPSwitch-GX flyback power supply has an input voltage of 230 VAC ± 15% and an output of 4 channels with a power of 7 W. The chip uses a low-cost DIP-8 package TOP242PN, eliminating the need for an external heat sink. Resistor R7 sets the current limit of the TOP242PN to 78% of the nominal value just past the value required to reach the low voltage full load. This feature allows the transformer to be designed in a more continuous state, achieving better efficiency and cross regulation without requiring a larger core size.
design feature
- Meets CISPR22B/EN55022B conducted EMI limits when the output ground is connected to ground
- No-load power consumption <0.5 W
- 132 kHz operating frequency and configurable current limit allows the use of a small, low cost EF16 transformer for 7 W output
- Small component count, PCB size 80 × 30 × 16 mm
- Integrated soft-start feature reduces component stress during startup
7W DVB-T multi-output power supply circuit diagram
See the uploading documentation for details (click to download)
Surface Mounting Sensor
NTC temperature surface mount sensors are non intrusive type sensors consisting of a probe section designed for mounting to flat or curved surfaces.
Cables can be supplied with insulation or jacket in PVC, Teflon or Silicon. Some cables are also available with a stainless steel over-braid or stainless steel armor for additional protection.
With the properties of easy installation, surface temperature measurement, surface mount type NTC temperature sensor has been used to power supply, radiator, electric motor and generator. Temperature range is from -30°C to 105°C.
Surface Mounting Sensor,Surface Mount Sensor,Sensor Radiator,Surface Mount Ntc Sensor
Feyvan Electronics Technology Co., Ltd. , https://www.fv-cable-assembly.com