Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Optimize a PFC preregulator by setting requirements for the full input-line and load range, then measuring power quality, losses, ripple, EMI, temperature, dynamics, and protection on the actual design. A boost stage with average-current control is a common starting point; interleaving and light-load modes can improve particular trade-offs, but neither is a guaranteed upgrade in every application.
Set the design targets before choosing a topology
Start with the application’s operating envelope and constraints. These determine whether a candidate design is suitable; a single peak-efficiency number cannot answer that question.
- Input: Specify the AC voltage range and frequency, including the conditions at which the supply must meet its requirements.
- Output and power: Define the DC bus voltage, rated power, and expected load profile—not just the maximum load.
- Energy and dynamics: Set hold-up and transient-response needs, as well as startup and inrush requirements.
- Compliance: Identify applicable conducted-emissions and harmonic-current requirements for the intended product and market.
- Physical limits: Establish thermal, component-size, and cost constraints.
Use these targets to compare candidate implementations across the range of line and load conditions that matter to the product. Include power factor, input-current THD, efficiency, input and output ripple, conducted emissions, component temperature, transient response, startup behavior, and fault protection.
Choose a topology and conduction mode for the application
Boost PFC with average-current control
A boost preregulator is a common starting point because average-current control can shape its continuous input current to follow changes in the rectified line waveform. The approach does not remove the need to design around switching ripple: the boost inductor’s ripple appears at the input, while the diode and output-capacitor current are pulsed. Account for the input filtering needed for EMI and the output capacitor’s ripple-current stress. Texas Instruments discusses these trade-offs in An Interleaved PFC Preregulator for High-Power Converters.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
#1 Best Overall
- Delivers 600W Continuous output at plus 40℃. Compliance with Intel ATX 12V 2. 31 and EPS 12V 2. 92 standards
- 80 PLUS Certified – 80% efficiency under typical load. Power good signal is 100-500 millisecond
- Supports (2) PCI-E 6 plus 2pin Connectors. Active (PFC) Power Factor Correction, MTBF: 100, 000 hours
- Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
- Hold up time is 16 millisecond minimum within 60 percent load. Input frequency range 50 - 60 in Hz
Single-phase or interleaved
Interleaving splits power between phases with a phase offset. In the UCC28070A’s CCM boost implementation, the two PWM channels operate 180 degrees apart. TI describes lower input and output ripple and potentially easier, less costly conducted-EMI filtering as benefits; the actual ripple, filter size, and cost depend on the complete design and should be verified with its layout and operating conditions. TI’s paper also notes that interleaving can reduce magnetic volume and RMS current in the boost capacitor.
CCM or transition mode
Continuous-conduction mode (CCM) and transition-mode (TM) interleaving are both documented design paths. TI’s UCC28070A is an example of an interleaved CCM boost controller; its listed capabilities include switching frequencies up to 300 kHz and frequency dithering, synchronization, current synthesis, quantized voltage feedforward, slew-rate enhancement, and protection functions. TI lists a 10 kHz lower switching-frequency capability for the A version and a 30 kHz minimum for the UCC28070. These are device-specific limits and features, not general prescriptions.
Rank #2
- Delivers 500 Watt Continuous output at plus 40 degree. Compliance with Intel ATX 12 Volt 2.31 and EPS 12V 2.92 standards
- 80 PLUS Certified, 80 percentage efficiency under typical load
- Supports (2) PCI E 6plus2pin Connectors. Active (PFC) Power Factor Correction, MTBF: 100,000 hours
- Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
- High Quality Components
TI also identifies the UCC28065 as a transition-mode interleaved controller, with light-load features including user-adjustable phase management and burst mode. Those product features do not establish how a particular implementation will perform. The cited material does not provide a controlled, same-condition comparison of CCM versus transition mode, interleaved versus single-phase operation, or analog versus digital control.
Optimize across the load range, not just at full power
At light load, switching losses can become a larger part of total losses. Depending on the topology and controller, phase shedding, valley switching or skipping, and burst operation may improve efficiency in some operating regions. Evaluate these modes against the actual load profile rather than assuming one is best.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Rank #3
- Fully Modular Power Supply: Standard Mini-ITX / FLEX ATX type. Full Range Active PFC 90-264V. Maximum Power: 500W.
- Connectors: 1 x 20+4pin Main Power, 1 x 8pin 12V(P4+4), 2x 6+2 PCIE, 2 x SATA, 2 x 4pin Molex
- Cooling: Forced Air Ventilation by 1 x 40mm Double Ball Bearing Fan. Various protections including: Overvoltage Protection (OVP), Overload Protection (OLP), Overcurrent Protection (OCP), Heating Protection (OTP), and Short Circuit Protection (SCP)
- Dimension: 160mm x 73.66mm x 35.5mm (6.3" x 2.9" x 1.4") - L x W x H
- Output: +3.3V@12A, +5V@14A, +12V@33A, -12V@0.3A, +5Vsb@2.5A
Also measure their effects on input-current THD and audible noise. A low-load efficiency gain is not useful if the supply fails a power-quality or acoustic requirement. TI’s TIDM-1022 Valley Switching Boost PFC Reference Design demonstrates why results need their operating context:
| Reference design | Documented implementation and conditions | Reported results |
|---|---|---|
| TI TIDM-1022 | Digital, 750 W, two-phase interleaved boost; 95–260 Vrms input and 47–63 Hz. Normal switching is 200 kHz above 10% load; below 10% load, PWM frequency varies from 140 to 330 kHz. | TI reports greater than 92% efficiency at 5% load, with 6% THD at low line and 7% THD at high line at 5% load. |
| TI PMP10948 | Two interleaved transition-mode PFC stages rated at 750 W and 550 W; reported efficiency measurements are at the stated AC input, frequency, and output power. | TI reports 95.6% efficiency at 120 VAC/60 Hz and 98% at 220 VAC/50 Hz, at over 1300 W output. The assembled board is described as for testing and validation, not for sale. |
| TI TIDA-010015 | Complete 500 W AC/DC reference design; the figures describe the complete design, not the PFC stage in isolation. | TI reports 94.5% overall efficiency at full load, peak efficiency above 95%, power factor above 0.99, and conducted-emissions compliance with EN55011 Class B. |
These are vendor reference-design results, not a controlled comparison or universal targets. Do not infer performance at other line voltages, loads, frequencies, or implementations from these figures. See TI’s pages for PMP10948 and TIDA-010015.
Rank #4
- 1500VA/1000W PFC Sinewave Uninterruptible Power Supply (UPS): Uses sine wave output to provide battery backup power for Active PFC & conventional power supplies; Safeguards computers, workstations, network devices, and telecom equipment
- 12 NEMA 5-15R OUTLETS: 6 battery backup & surge protected outlets, 6 surge protected outlets; INPUT: NEMA 5-15P right angle, 45 degree offset plug with 5 foot power cord; 2 USB charge ports (1 Type-A, 1 Type-C) quickly charge phones and tablets
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color display alerts users to potential issues before they can affect critical equipment and cause downtime; Screen tilts up to 22 degrees
- AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power; UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $500,000 Connected Equipment Guarantee; FREE PowerPanel Management Software (Download)
Validate ripple, EMI, thermal behavior, and protection
Interleaving may reduce ripple and ease filter demands, but it does not guarantee a smaller filter or emissions compliance. Confirm conducted emissions on the implemented design, including its layout and filter, and check ripple at the input and output across the operating range. Verify that the output capacitor and other components remain within their ripple-current and thermal limits.
Measure component temperatures at relevant line and load points, then check startup, inrush, transient response, and fault behavior against the design requirements. Controller documentation can identify available features and protections, but it cannot substitute for validation of the finished supply.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Use controller and evaluation hardware as design references
For a build-oriented evaluation, TI documents the UCC28070A interleaved CCM boost PFC controller and a UCC28070EVM described as a 300 W, two-phase interleaved preregulator for 85–265 V AC input and 390 V DC output. Treat these as component and evaluation examples rather than universal recommendations. Confirm device limits, availability, and design details in the current manufacturer documentation before selecting parts.
A practical optimization loop is to compare candidate designs at the same relevant line and load points, identify which metric is limiting, change one design choice at a time, and remeasure. That makes trade-offs—such as lower ripple versus added complexity, or light-load efficiency versus THD or audible behavior—visible rather than inferred from topology labels.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
