Product Details
Product Description
Product Description
8724-CA-PS GE Communication module MTL product genuine quality assurance real goods
8724-CA-PS GE Communication module MTL product genuine quality assurance real goods
Our Email: 2235954483@qq.com
contact number:13313705507
contacts:HE
PWM control (S-8520 Series)
The S-8520 Series is a DC-DC converter using a pulse width modulation method (PWM) and features a low
current consumption.
In conventional PFM DC-DC converters, pulses are skipped when the output load current is low, causing a
fluctuation in the ripple frequency of the output voltage, resulting in an increase in the ripple voltage.
The switching frequency does not change, although the pulse width changes from 0 to 100% corresponding to
each load current. The ripple voltage generated from switching can thus be removed easily through a filter
because the switching frequency is constant. And the ripple voltage will be skipped to be low current
consumption when the pulse width is 0% or it is no load, input current voltage is high.
1. 2 PWM / PFM switching control (S-8521 Series)
S-8521 Series is a DC-DC converter that automatically switches between a pulse width modulation method
(PWM) and a pulse frequency modulation method (PFM), depending on the load current, and features low
current consumption.
The S-8521 Series operates under PWM control with the pulse width duty changing from 25 to 100% in a high
output load current area.
The S-8521 Series operates under PFM control with the pulse width duty fixed at 25%, and pulses are skipped
according to the load current. The oscillation circuit thus oscillates intermittently so that the resultant lower self
current consumption prevents a reduction in the efficiency at a low load current. The switching point from PWM
control to PFM control depends on the external devices (coil, diode, etc.), input voltage and output voltage.
The S-8521 Series is an especially highly efficient DC-DC converter at an output current around 100 A.
>>
Portable First Aid Artificial Respiration Cardiopulmonary Choking Rescue Device for Adults and Children, Non-Medical Use
>>
wheel hub bearing DAC35520012 auto bearing
>>
Zr 2025 New Factory Price Best Rest Wireless Portable Multi-Function Time Constant Temperature Hot Compress SPA Waist Neck Hip Foot Leg Back Massager
>>
L.A. Abrasion Test factory price
>>
High strength drill tail screw
>>
Wind Solar Hybrid Power System /Wind Turbine /Solar Power System (700W) Wind Generator System for Home Use Wind Power Wind Mill Solar System
>>
High Speed Steel Titanium Step Drill Bits
>>
Black Galvanized Steel Perforated Wire Metal Sheet Speaker Grille
>>
High Altiture Agricultural Large Capacity Drones Spraying Drone 22L
>>
LOREADA Carby carb carburettor CARBURETOR ASSY for SUZUKI SJ410 engine 13200-80322 13200-80321 1320080322 1320080321
>>
Travelling Jp90 Series Hose Reel Irrigation System Irrigation Equipment
>>
Mop T295 Aluminum alloy pole
>>
Electronic Universal Tensile Testing Machine Plastic Rubber Compression Tensile Strength Elongation Test Equipment
>>
SHENGKE Silver Bracelet Watch SK Brand Fashion Watch For Ladies K0062L
>>
Hot Sell 3 Wheels Foot Scooters Folding Kids Kick Scooter
>>
Good Quality Multi-Blade Saw Cutting Machine Cut Floor Plank
>>
Clutch Disc 82011592 for New HollandTractor
>>
Tedlar®PVF Gas Sampling Bags—PTFE valve+PTFE fitting (TDLC3Z)
>>
The Production Process Waste Tire Recycling Machinery
>>
Physical therapy equipments device for sleeping and anti fatigue mat