RDK-91 Power Integrations, RDK-91 Datasheet - Page 28

• Manufacturer Part Number: RDK-91
• Description: KIT DESIGN REF TINYSWITCH-III
• Manufacturer: Power Integrations
• Series: TinySwitch®-IIIr

Specifications of RDK-91

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Non-Isolated
• Power - Output: 12W
• Voltage - Output: 12V
• Current - Output: 1A
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Board Type: Fully Populated
• Utilized Ic / Part: TNY274, TNY275, TNY276, TNY277, TNY278, TNY279, TNY280
• Product: Accessories & Kits
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Other names: 596-1194

11.5 Output Ripple Measurements
11.5.1 Ripple Measurement Technique
A modified oscilloscope test probe was used to take output ripple measurements, in order
to reduce the pickup of spurious signals. Using the probe adapter pictured in Figure 22,
the output ripple was measured with a 1 µF electrolytic, and a 0.1 µF ceramic capacitor
connected as shown.
Figure 22 – Oscilloscope Probe Prepared for Ripple Measurement (End Cap and Ground Lead Removed).
Power Integrations
Tel: [phone] Fax: [phone]
www.powerint.com
Probe Ground
Probe Tip
Page 28 of 37