DC-DC Converter
Industry: Pool Spa Controls Product: Electrolytic Chlorinator Technology: DC-DC Converter |
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This was a fun challenge.
A new client asked if we could replace a custom DC-DC converter they were using from another company. Even after coming up with several design iterations, their manufacturer couldn’t improve upon a failure rate of about 30 percent, and was never able to achieve full-rated power or parallel mode operation!
We redesigned their DC-DC controller with a high-performance DSP processor and an H-Bridge FET output driver. Conservative power design greatly improved the controller’s thermal performance; even at full power, it performed flawlessly. Several hundred controls have been working in field operations with zero failures.
Digital technology allows parallel mode operation through high-speed serial network links. We also used a complex current discharge algorithm to limit reversing currents to the rated load limits.
Product Highlights
A new client asked if we could replace a custom DC-DC converter they were using from another company. Even after coming up with several design iterations, their manufacturer couldn’t improve upon a failure rate of about 30 percent, and was never able to achieve full-rated power or parallel mode operation!
We redesigned their DC-DC controller with a high-performance DSP processor and an H-Bridge FET output driver. Conservative power design greatly improved the controller’s thermal performance; even at full power, it performed flawlessly. Several hundred controls have been working in field operations with zero failures.
Digital technology allows parallel mode operation through high-speed serial network links. We also used a complex current discharge algorithm to limit reversing currents to the rated load limits.
Product Highlights
- DC-DC power regulator
- 750 watt output (25 amps @ 30 volts)
- 1% current regulation
- Set point adjustment from 0 to 25 amps
- Output voltage limited
- Bipolar H-bridge output stage
- Timed auto-reversing algorithm
- Parallel operation up to 8 devices (6,000 watts)
- Peak current trip
- LED status indicators